IOF Committees

Physician leaders working together to advance evidence-based interventional orthobiologics through education, research, hands-on training, member engagement, mentorship and clinical excellence.

General Information About IOF Committee Members

IOF welcomes distinguished physicians from around the world who share a commitment to education, research and evidence-based practice.

01

General Expectations

  • Maintain an active IOF membership.
  • Champion the mission of IOF by advancing evidence-based interventional orthobiologics through education, research, and clinical excellence.
  • Actively participate in committee activities, educational programs, research collaborations, and organizational projects.
  • Represent IOF within the medical community while upholding the highest standards of ethics, professionalism, and patient care.
  • Foster collaboration and mentor the next generation of physicians entering the field of interventional orthobiologics.
  • Demonstrate ongoing engagement through meaningful contributions, leadership activities, and participation in IOF initiatives.
  • Serve as part of the leadership pipeline for future Committee Chairs, Board Members, and Executive Leadership positions.
  • Maintain Faculty appointments for a renewable two-year term based on continued participation and engagement.

International Participation

  • Contribute to IOF educational, research, and committee initiatives.
  • Strengthen collaboration between IOF and the international orthobiologics community.
  • Support the development of future regional educational initiatives and international IOF chapters.
  • Help cultivate future global leaders in interventional orthobiologics.

Leadership Pathway

Committee service is an important part of IOF's leadership pipeline, creating opportunities for engaged physicians to take on greater roles within the organization.

01
Entry Point Committee Appointee
02
Expanded Service Committee Leadership and/or Lab Faculty
03
Governance Board Member
04
Executive Service Executive Leadership

Committee Leadership & Members

Select a committee to view its chairs, primary responsibilities, members and physician biographies.

01 Membership & Engagement Committee
Committee Leadership
Mary A. Ambach, MD — IOF Committee Chair
Committee ChairMary A. Ambach, MD
View bio

Double board-certified in Physical Medicine & Rehabilitation and Pain Medicine, Dr. Ambach is the founder of BIOEVOLVE San Diego Orthobiologics & Sports Center, a UC San Diego clinical instructor and the current IOF President.

View IOF Board profile
Don Buford, MD — IOF Committee Chair
Committee ChairDon Buford, MD
View bio

Dr. Buford is an orthopedic surgeon, founder of Texas Orthobiologics and longtime educator in regenerative medicine and musculoskeletal ultrasound. He completed sports medicine fellowship training at Southern California Orthopaedic Institute.

View IOF Board profile
Primary Responsibilities
  • Collaborate with the IOF social media team to create and promote content that increases member engagement, visibility, and awareness of IOF initiatives.
  • Develop and coordinate webinars and other engagement activities that provide value to current and prospective members.
  • Promote member recruitment, strategic partnerships, and collaborative initiatives through networking and outreach with national and international organizations.

Committee Members

View submitted physician biographies and professional profile links.

Pedro Bernáldez, MBA, MD, PhD — IOF Membership & Engagement Committee

Pedro Bernáldez, MBA, MD, PhD

Committee Member

View bio

Pedro Bernáldez Domínguez MBA MD, PhD is a specialist in Sport Trauma and Orthopaedic Surgery, with training between Spain and several Hospitals in the USA (Mayo Clinic, Massachusetts General Hospital, Mont Sinai, Rush Orthopedic, Maimonides Medical Center, etc.) He specializes in Arthroscopic Surgery, Regenerative Medicine, and Ultrasound-Guided Interventions. - Doctor of Medicine "Cum Laudem" from the University of Seville, he has 2 Official Masters, one in Sport Trauma - by the Catholic University of Murcia-, and another a MBA in Healthcare Management awarded by the IMF Business School. - Director of SportMe Medical Center in Seville (Spain) since 2009 www.clinicabernaldez.com , where he performs all arthroscopic surgeries, he is also an expert in musculoskeletal ultrasound and ultrasound-guided therapies (awarded by the Spanish Federation of Sports Doctors) and active member of the Ultrasound Group of the musculoskeletal system within the Spanish Society of Sports Medicine and of the Spanish Society of Sport Trauma, as well as Director of the Biological Therapies Unit Orthobioseville (www.ortobiosevilla.com) - Among other merits, Dr. Bernáldez stands out for being the Director of the online medical training platform "Eco-Msk Course, Direct to the injury" www.eco-msk.es, fundator of the Andalusian Elbow and Shoulder Group (GANCHO) and the I World Congress of Orthobiology (www.ortobiologia.com) - Director of the Spanish Academy of Regenerative Medicine (AEMR) www.aemr.es and of the International OrthoBioMsk DEBA Course, this year the V edition will be in Seville in February 2026. www.ortobiomsk.com - Coordinator of the Spanish Group of Biological Therapies (GRESTBI) within SETRADE and director of the online Conference "Master Talks on SETRADE Biological Therapies" www.setrade.org - He is a member, among others, of the Spanish Association of Arthroscopy (AEA), and the Spanish Society of Sports Traumatology (SETRADE) - At the surgical level, his passion is Arthroscopic Surgery, in all joints, where he is a national reference especially in knee, shoulder, hip and elbow.

Professional profile
Sam Botchey — IOF Membership & Engagement Committee

Sam Botchey

Committee Member

View bio

Dr Sam Botchey is a Consultant in Musculoskeletal, Sport and Exercise Medicine specialising in interventional orthobiologics, regenerative medicine, musculoskeletal ultrasound and image-guided procedures. He is the Founder of The Sports Biologics Clinic and holds consultant appointments at leading hospitals and medical institutions across London and the South East of England.

Dr Botchey completed his specialist training programme in Sport and Exercise Medicine at Oxford University Hospitals’ renowned Nuffield Orthopaedic Centre. He is a Fellow of the Faculty of Sport and Exercise Medicine and holds a first-class honours degree in Sport and Exercise Science, a Master’s degree in Sports Medicine, Exercise and Health from University College London, and a Postgraduate Certificate with Distinction in Musculoskeletal Ultrasonography from the University of East London.

His clinical practice focuses on the non-operative management of musculoskeletal injuries, tendinopathy and osteoarthritis. His areas of expertise include diagnostic musculoskeletal ultrasound, ultrasound-guided injections, platelet-rich plasma, bone marrow-derived orthobiologics, intraosseous procedures, hyaluronic acid and extracorporeal shockwave therapy. He has a particular interest in integrating precise diagnosis and image-guided intervention with progressive rehabilitation and performance medicine.

Dr Botchey has extensive experience in elite and professional sport. He has worked across Premier League and international football, Premiership rugby, the NFL London Games and major sporting events at Wembley Stadium. His roles have included work with Tottenham Hotspur, Chelsea Football Club, Arsenal Football Club, England Football, UK Sport and the NFL.

Alongside his clinical practice, Dr Botchey is actively involved in medical education, research and professional development within orthobiologics. His academic interests include orthobiologic dose, patient selection and phenotype, procedural precision, treatment standardisation, rehabilitation integration and real-world clinical outcomes. He lectures on musculoskeletal and orthobiologic medicine and is committed to advancing evidence-based practice, responsible clinical innovation and international collaboration across the field.

Professional profile
Zaid Matti, MD — IOF Membership & Engagement Committee

Zaid Matti, MD

Committee Member

View bio

Dr. Zaid Matti MD, MBChB, PgDipMSM Otago, PgDipSurgAnat Otago, FRNZCGP, FNZCMM, FAAMM is a musculoskeletal and Regenerative Medicine Specialist practising in New Zealand and Australia. He is Medical Director of RegenCellular and Founder of the New Zealand Musculoskeletal & Regenerative Medicine Centre.

His clinical thinking is grounded in an early career in orthopaedic surgery. Those years shaped how he examines, how he reads imaging, and how he places a needle — but they also convinced him that a great deal of what arrives on an operating list need never have reached it.

Orthobiologics is the answer he has built his practice around. He regards it as a bridging technology: a genuine middle ground between conservative care that has run out of options and surgery that is premature, irreversible, or simply wrong for the patient in front of him. He works across the full range of the modality — image-guided platelet-rich plasma in its various preparations, culture-expanded adipose-derived mesenchymal stromal cells, and injectable adjuncts — chosen to fit the problem rather than a preferred product.

Teaching is the other half of the work. He holds that orthobiologics earns its place only through evidence, and he teaches it that way — honestly, and including its limits — to general practitioners, specialists, and colleagues throughout Australasia. He has been a member of the Interventional Orthobiologics Foundation IOF for close to a decade and counts it among the defining landmarks of his career. Its influence is visible in how he works: his practice is built almost entirely on image-guided intervention, with ultrasound and fluoroscopic guidance treated as the standard of accuracy rather than an optional refinement.

Professional profile
Alberto Panero, DO — IOF Membership & Engagement Committee

Alberto Panero, DO

Committee Member

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Alberto J. Panero, D.O. is a board-certified Physical Medicine & Rehabilitation physician with subspecialty certification in Sports Medicine and founder of The BIOS Orthopedic Institute in Sacramento, California. He specializes in interventional sports medicine, and advanced image-guided orthobiologic procedures. Dr. Panero serves as core faculty for the University of California, Davis PM&R Sports Medicine Fellowship, where he mentors physicians in musculoskeletal ultrasound, interventional orthopedics, and regenerative medicine. An internationally recognized educator, he has authored multiple peer-reviewed publications and delivered more than 100 national and international presentations on orthobiologics, ultrasound-guided procedures, and sports medicine. His clinical experience includes caring for elite and professional athletes while maintaining a practice focused on helping patients restore function, optimize performance, and return to activity through evidence-based, minimally invasive treatments. Passionate about education, innovation, and collaboration, Dr. Panero is committed to advancing the field of interventional orthobiologics and fostering an engaged, connected community that supports the growth and success of IOF membership.

Professional profile
Shounuck Patel, DO — IOF Membership & Engagement Committee

Shounuck Patel, DO

Committee Member

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Dr. Patel is double board-certified in Sports Medicine and Physical Medicine & Rehabilitation, as well as fellowship trained in interventional pain management. He focuses his clinical practice on the use of exercise, nutrition, Osteopathic Manipulation, and natural therapies such as regenerative cell therapy for the treatment of orthopedic injuries and pain conditions.

Dr. Patel earned his degrees across the nation at the George Washington University in Washington DC, Drexel University in Philadelphia, and Midwestern University’s College of Osteopathic Medicine in Chicago. He completed his residency at the prestigious Kessler Institute in New Jersey, fellowship with the Orthopedic and Spine Specialists hospital of Pennsylvania, and advanced regenerative medicine training with Regenexx and the Interventional Orthobiologics Foundation (IOF) – a non-profit for which he is a master instructor for other physicians and on the membership and engagement committee.

Dr. Patel is an invited speaker and instructor for medical conferences and courses across the world. In addition to teaching physicians, Dr. Patel is an associate clinical professor for medical students at the Western University and Touro University Colleges of Osteopathic Medicine.

Professional profile
Marc Pietropaoli, MD — IOF Membership & Engagement Committee

Marc Pietropaoli, MD

Committee Member

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Marc P. Pietropaoli, MD, is a board-certified, Sports Medicine Fellowship-Trained Orthopedic Surgeon and Regenerative Medicine Specialist with more than 25 years of clinical experience. He is the Founder & CEO of Victory In Motion – Home of Knee Repair, NOT Knee Replacement®, in Skaneateles, New York.

After completing his orthopedic surgery residency, Dr. Pietropaoli completed a Sports Medicine Fellowship at the American Sports Medicine Institute under Dr. James R. Andrews and Dr. William G. Clancy. Throughout his career, he has focused on advancing evidence-based orthopedic care through biologic therapies, rehabilitation, injury prevention, and patient-centered treatment strategies. His practice integrates orthobiologics, including platelet-rich plasma (PRP) and bone marrow aspirate concentrate (BMAC), photobiomodulation with comprehensive rehabilitation, strength and conditioning, nutrition, and outcomes tracking.

Dr. Pietropaoli is an international speaker, educator, entrepreneur, and Amazon #1 bestselling author of Repair NOT Replace™. He has been an early adopter of emerging regenerative technologies and is committed to advancing research, education, and responsible clinical innovation within orthobiologics.

As Founder of Victory In Motion, his team is pursuing an ambitious mission: to End The Need For Knee Replacements By The Year 2043 by advancing joint preservation, regenerative medicine, patient education, and evidence-based alternatives to joint replacement whenever appropriate.

Professional profile
Sharmila Tulpule — IOF Membership & Engagement Committee

Sharmila Tulpule

Committee Member

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Dr. Sharmila Tulpule is an internationally recognized Orthopaedic Surgeon and American Board Certified Regenerative Medicine Specialist with over three decades of experience in musculoskeletal care. She is the Founder and Director of Orthobiologix Biotech Pvt. Ltd. and Orthobiologix Clinic, established to provide patients with unbiased orthopaedic diagnosis and a comprehensive discussion of both surgical and non-surgical treatment options, including the latest evidence-based orthobiological and regenerative therapies. She currently practices at Mubadala Health and Medcare Hospital in Dubai and Orthobiologix Clinic, Mumbai India and divides her time between the two countries. One of the few practicing female orthopaedic surgeons in the UAE, GCC, and India, Dr. Tulpule has extensive expertise in orthopaedics, arthroscopic surgery, sports injuries, ultrasound-guided orthobiologic interventions, and regenerative medicine. Her passion for orthobiologics evolved from her commitment to minimally invasive treatments that maximize healing while minimizing the need for surgery.

She completed her MBBS and MS (Orthopaedics) at Government Medical College, Nagpur University, where she was a University Topper in MS Orthopaedics and a Gold Medalist in General Surgery. Following her postgraduate training, she refined her surgical skills under some of India's most respected orthopaedic and arthroscopic surgeons before serving as lecturer, Head of Department, trauma surgeon, and consultant at leading institutions in India. She also underwent advanced arthroscopy training in France before establishing a distinguished orthopaedic career in Dubai.

Dr. Tulpule is a Diplomate and Fellow of the American Board of Regenerative Medicine (DABRM, FABRM). She is the India Affiliate of the American Board of Regenerative Medicine (ABRM) and leads physician education and training programs for ABRM in India. She also serves on the Board of the American Society of Regenerative Medicine (ASRM), Dubai. She serves on the Orthobiologics Task Force of SICOT and on the Advisory Board of the World Institute of Regenerative Medicine. She is the Founder and Chairman of ReGen, one of India's premier international conferences on regenerative orthopaedics and orthobiologics, and Founder and Trustee of the Advanced Regenerative Medicine Foundation.

An invited international faculty member, Dr. Tulpule has spoken at prestigious meetings including TOBI (USA), SICOT (Spain) and numerous global regenerative medicine conferences. She has authored peer-reviewed research papers, contributed chapters to international textbooks on orthobiologics, and received the Gary Malanga Award for Best Educator in Regenerative Medicine.

Driven by a commitment to ethical, evidence-based regenerative medicine, Dr. Tulpule continues to advance the field through patient care, research, physician education, and international collaboration.

Professional profile
Nikhil Verma, MD — IOF Membership & Engagement Committee

Nikhil Verma, MD

Committee Member

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Dr. Nikhil Verma is a board-certified physician in Physical Medicine and Rehabilitation, fellowship-trained in interventional spine and musculoskeletal health. He completed his fellowship at OrthoAlabama Spine and Sports, a North American Spine Society accredited program. He is the founder of Essential Sports and Spine Solutions in Columbus, Ohio, a practice dedicated to evidence-based, image-guided, non-surgical musculoskeletal care. His clinical focus centers on autologous orthobiologic therapies including platelet-rich plasma, bone marrow aspirate concentrate, micronized adipose, and prolotherapy, delivered through a protocol-driven model rather than isolated injections. Dr. Verma holds IOF certificates in Advanced Spine and in Intermediate Shoulder and Elbow Orthobiologic Injection Technique, and continues to pursue advanced orthobiologic training. He is an active contributor to physician education and the responsible advancement of the field. He chairs the Social Media Committee for the American Society of Pain and Neuroscience, served as Regenerative Medicine Co-Chair for the American Academy of Physical Medicine and Rehabilitation from 2023 to 2025, and serves on the Editorial Advisory Board of Orthopedics This Week. In 2026 he joins the faculty of the OHSIPP annual conference, presenting on photobiomodulation for cellular stimulation and on regenerative medicine practice integration. He also reaches a broad clinical and patient audience through his educational series "Things I Didn't Learn in Med School" and his newsletter, "Essentials of Healing." As a member of IOF's Membership and Engagement Committee, Dr. Verma is committed to growing an active, multidisciplinary community of clinicians grounded in scientific evidence, ethical practice, and patient safety. He believes the future of orthobiologic medicine depends on strong physician engagement, honest communication, and a shared commitment to advancing the field responsibly.

Professional profile
John Knab, MD — IOF Membership & Engagement Committee

John Knab, MD

Committee Member

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John Knab, MD, is a board-certified anesthesiologist and interventional pain physician with more than 25 years of clinical experience, specializing in spine and musculoskeletal disorders and interventional orthobiologics. He is the founder and Medical Director of Elite Spine + Joint and serves as Medical Director of the Center for Pain Management in Wilmington, North Carolina.

Dr. Knab completed his anesthesiology residency at Virginia Mason Medical Center and fellowship training in Pain Medicine at the University of California, San Diego. His career has focused on developing and refining image-guided, minimally invasive approaches to spine and musculoskeletal disease, with an emphasis on evidence-based orthobiologic therapies.

Physician education is a major focus of Dr. Knab’s work. He lectures nationally on interventional orthobiologics, spine care, platelet-rich plasma and other autologous biologic therapies, and the integration of emerging technologies into musculoskeletal practice. He has helped develop and teach advanced programs on orthobiologic treatment of the lumbar functional spinal unit and other complex spine and musculoskeletal conditions.

His educational interests also include the broader field of Interventional Orthopedics. He teaches physicians musculoskeletal ultrasound, image-guided diagnostic and therapeutic techniques, and the thoughtful use of complementary regenerative technologies such as extracorporeal shockwave therapy, photobiomodulation/laser therapy, and other emerging modalities to support tissue healing, rehabilitation, and patient outcomes.

Dr. Knab is active in academic medicine and clinical research. He serves on the Editorial Board of Pain Physician and has authored textbook chapters on regenerative and interventional medicine. His academic interests include platelet dosing and formulation, epidural and intradiscal biologic therapies, discogenic pain, functional spinal unit treatment, and clinically meaningful protocols that translate orthobiologic science into reproducible patient care. He has also contributed to prospective clinical research evaluating platelet-based treatments for lumbar radiculopathy.

Dr. Knab is also committed to responsible physician and patient education through social media and digital platforms. He uses these channels to discuss emerging research, challenge unsupported claims, and translate complex orthobiologic science into practical clinical concepts, helping distinguish evidence-based interventional orthobiologics from treatments lacking adequate scientific support.

Dr. Knab’s professional interests center on advancing Interventional Orthopedics and orthobiologics through rigorous clinical practice, research, physician education, mentorship, and open scientific discussion. He is committed to helping establish interventional orthobiologics as a credible, evidence-driven discipline and educating the next generation of physicians who will move the field forward.

Professional profile
02 Hands-On Training & Curriculum Committee
Committee Leadership
Jason Markle, DO — IOF Committee Chair
Committee ChairJason Markle, DO
View bio

Dr. Markle is board-certified in Physical Medicine & Rehabilitation and fellowship-trained in interventional orthopedics. He is a co-owner of the Centeno-Schultz Clinic and has extensive clinical and research experience with advanced autologous orthobiologics.

View IOF Board profile
Primary Responsibilities
  • Develop and standardize cadaver labs, workshops, procedural training, and competency-based interventional educational curriculum.
  • Help plan, organize, and oversee the hands-on laboratory and procedural workshops for the IOF MAX Conference.

Committee Members

View submitted physician biographies and professional profile links.

Ramona Chryssidis — IOF Hands-On Training & Curriculum Committee

Ramona Chryssidis

Committee Member

View bio

Ramona has worked in Musculoskeletal Medicine since 2002. She is a Fellow of the Royal Australian College of General Practitioners and completed a Graduate Diploma in Musculoskeletal Medicine at Flinders University in 2004.

She takes a comprehensive, holistic approach to identifying and managing the causes of musculoskeletal pain and dysfunction. Following a thorough assessment, she draws on a range of treatment techniques tailored to each patient’s needs.

She has a special interest in the assessment and management of sacroiliac joint dysfunction and hypermobility disorders.

Treatment Techniques include ultrasound-guided regenerative injection therapies, (dextrose prolotherapy and platelet-rich plasma), trigger point injections, Lyftogt perineural injection treatment, peripheral nerve and fascial hydrodissection, radial and focused shockwave therapy and photobiomodulation.

Ramona regularly attends local and international workshops and conferences to keep her skills current. She works at Smart Health, a multidisciplinary clinic in Adelaide, South Australia, where she collaborates with medical and allied health practitioners to support the best possible outcomes for her patients.

She is the immediate Past President of the Australian Association of Musculoskeletal Medicine (AAMM) and previously served as convenor and tutor for the Adelaide node of the AAMM Certificate Course and Injection Therapies workshops for doctors for six years. She has presented and taught at Australian and International conferences and workshops. She is on the Strategy Advisory Board for the International Federation of Musculoskeletal Medicine, as well as the International Advisory Board for the World Institute of Regenerative Medicine.

Professional profile
Steve Derrington, DO — IOF Hands-On Training & Curriculum Committee

Steve Derrington, DO

Committee Member

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Dr. Steve Derrington is a board-certified physical medicine and rehabilitation physician and the CEO and Medical Director of Derrington Orthopedics, an interventional orthobiologics practice with locations in Carlsbad and Laguna Hills, California, and the largest Regenexx clinic in California. He completed a fellowship in interventional spine, sports medicine, regenerative medicine, and diagnostic ultrasound under Marko Bodor, MD, in Napa, California, and has trained physicians in these techniques for years as faculty at the Interventional Orthobiologic Foundation and OrthoSono.

Dr. Derrington's clinical work focuses on orthobiologic therapies, including platelet-rich plasma and bone marrow and adipose-derived treatments, for the non-surgical management of joint, spine, and sports injuries. As a member of the IOF Hands-On Training & Curriculum Committee, he helps develop and standardize cadaver labs, procedural workshops, and competency-based training for physicians learning these techniques.

Mairin Jerome, MD — IOF Hands-On Training & Curriculum Committee

Mairin Jerome, MD

Committee Member

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Dr. Mairin Jerome is a physiatrist specializing in interventional orthobiologics and the founder of the Center for Regenerative Sports and Spine Care in Atlanta, Georgia. She completed her physiatry residency at Emory University and fellowship training in interventional orthopedics and regenerative medicine at the Centeno-Schultz Clinic. Before entering solo private practice, she held staff physician positions at the Regenerative SportsCare Institute in New York with Dr. Greg Lutz, the Centeno-Schultz Clinic, and Regenexx Des Moines.

Dr. Jerome's research focuses on treatment development for neuromuscular pelvic dysfunction, percutaneous intervention for scoliosis, and safety optimization of intradiscal orthobiologic injections. She has authored multiple peer-reviewed publications, is a contributor to textbooks in the field, and speaks nationally on topics including the spine microbiome, intradiscal PRP safety, and cervical spine orthobiologic intervention. As an instructor for the Interventional Orthobiologics Foundation, she is dedicated to advancing the subspecialty through high-quality physician procedural education.

Tom Nabity, MD — IOF Hands-On Training & Curriculum Committee

Tom Nabity, MD

Committee Member

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Dr. Nabity completed his medical school training at the University of Nebraska Medical Center in Omaha, Nebraska, and his post-graduate training at William Beaumont Hospital in Royal Oak, Michigan. He is a board-certified Physical Medicine and Rehabilitation physician (ABPMR) with subspecialty board certification in Pain Medicine (ABPM) and Musculoskeletal Ultrasound (RDMSK).

He has a special interest in the non-surgical management of musculoskeletal, spine, and joint pain and was one of the first physicians in Michigan to incorporate orthobiologics into his treatment options. In 2017, he opened the Michigan Center for Regenerative Medicine, which focuses on offering evidence-based, FDA-compliant regenerative medicine options for musculoskeletal conditions.

Professional profile
03 Education Committee
Committee Leadership
Imran Siddiqui, MD, RMSK — IOF Committee Chair
Committee ChairImran Siddiqui, MD, RMSK
View bio

Dr. Siddiqui is board-certified in Physical Medicine & Rehabilitation and musculoskeletal ultrasound. He is a partner and clinical leader at Regenerative Orthopedics and Sports Medicine and an experienced educator in ultrasound and orthobiologics.

View IOF Board profile
Primary Responsibilities
  • Develop and maintain high-quality educational resources for the IOF website, including an online ultrasound library, landmark publications, procedural protocols, and member reference materials.
  • Collaborate with the Membership & Engagement Committee to help develop and deliver the IOF Now webinar series by identifying relevant topics, recruiting expert speakers, and creating educational programming that meets the needs and interests of IOF members.

Committee Members

View submitted physician biographies and professional profile links.

Jay Bowen, DO — IOF Education Committee

Jay Bowen, DO

Committee Member

View bio

Jay E. Bowen, DO, is a board-certified physician specializing in physical medicine and rehabilitation (physiatry), and sports and pain medicine. He is certified in the use of Prolozone Therapy for subacute and the treatment of chronic pain. Dr. Bowen currently serves as the Medical Director of New Jersey Regenerative Institute in Parsippany, New Jersey, and has been working with patients for more than 25 years.

Dr. Bowen manages all aspects of neuromusculoskeletal pain and performs various interventional procedures, including orthobiologics, joint, epidural, facet, and sacroiliac joint treatments. He also specializes in delivering medical ozone through systemic HiDose ozone/UBI, insufflation, and local (Prolozone ®) injections.

Dr. Bowen completed his Doctor of Osteopathy at the New York College of Osteopathic Medicine and received his initial board certification from the American Board of Physical Medicine and Rehabilitation. Not only is Dr. Bowen heavily involved in clinical research, but he was also the Sports Medicine Fellowship Coordinator at Kessler Institute for Rehabilitation. Dr. Bowen completed his fellowship at UMDNJ-Newark/Kessler Institute for Rehabilitation. He serves as the Visiting Scientist in the Centers for Spinal Cord Injury Research and Outcomes & Assessment Research with a special focus on regenerative medicine/orthobiologics. In January 2018, he was appointed to the New Jersey Council on Physical Fitness and Sports and serves on many other committees for various organizations.

With decades of pain management experience, Dr. Bowen’s interests include regenerative medicine procedures such as platelet rich plasma (PRP), microfractured adipose tissue (MFAT), bone marrow aspirate concentrate (BMAC), prolotherapy, shockwave therapy, and ozone. Additionally, he is passionate about sports medicine, diagnostic musculoskeletal ultrasound, chronic tendon disorders, sports injuries, shoulder biomechanics, and medical education. He is also one of the founders of DataBiologics, a company focused on collecting data on the use of regenerative medicine.

Professional profile
Jason Epstein, MD — IOF Education Committee

Jason Epstein, MD

Committee Member

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Jason Epstein, MD, MBA is a board-certified physician specializing in the comprehensive evaluation and management of musculoskeletal conditions, with a focus on restoring movement, improving function, and supporting long-term joint and tissue health.

Dr. Epstein completed his residency in family medicine at Inspira Healthcare Network in Woodbury, NJ, followed by a sports medicine fellowship at Halifax Health. He currently serves as the head team physician for the Orlando Solar Bears and works closely with athletes and performers across professional sports, performing arts, and high-demand environments. His prior experience includes serving as a team physician for the Cincinnati Reds minor league affiliate Daytona Tortugas, Bethune-Cookman University, Embry-Riddle Aeronautical University, Daytona State College, and multiple local high schools. He has also collaborated with SpaceX on exercise treadmill testing for cardiovascular evaluation.

Dr. Epstein earned a Master of Business Administration (MBA) from the Fox School of Business at Temple University and holds academic appointments with Florida State University, the University of Central Florida, and Loma Linda University.

His clinical approach emphasizes thoughtful diagnosis and individualized care, considering biomechanics, neuromuscular control, and activity demands to guide treatment decisions. He has advanced training in musculoskeletal ultrasound for diagnostic evaluation and image-guided procedures. His areas of expertise include orthobiologic treatments such as platelet-rich plasma (PRP), bone marrow aspirate (BMA), microfat (MFAT) and other regenerative therapies, with a focus on tendon, ligament, joint, and soft tissue conditions. Dr. Epstein is trained in TenJet percutaneous tenotomy and utilizes this minimally invasive, ultrasound-guided procedure to precisely remove diseased tendon tissue and promote healing in patients with chronic tendon pain who have not improved with conservative care.

Dr. Epstein remains actively involved in research serving as specialty associate director, with interests in tendon pathology, core muscle injuries, and the clinical application of orthobiologic therapies to improve function and long-term outcomes.

A native of Cherry Hill, New Jersey, Dr. Epstein is a member of several professional organizations, including the American Medical Society for Sports Medicine, the Interventional Orthobiologic Foundation, the American Academy of Family Physicians, the Performing Arts Medicine Association, and additional organizations focused on orthobiologics and regenerative medicine.

Professional profile
Kristin Oliver, MD — IOF Education Committee

Kristin Oliver, MD

Committee Member

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Dr. Kristin Oliver is a national leader in Orthobiologics. Dr. Oliver completed both her residency and sports medicine fellowship at the University of Missouri in Columbia, MO. She was a co-founder of Bluetail Medical Group where she practiced for over 15 years staffing their offices in Missouri, Wisconsin, Arkansas and Minnesota. Over these years she has treated over 25,000 patients with either PRP, BMAC, or MFAT. Dr Oliver speaks nationwide on Regenerative Orthopedics and has authored multiple articles on the same subject in peer reviewed publications She retired from Bluetail in 2023 and now focuses on teaching and training others in office based Orthobiologics while maintaining a boutique clinic in her new home state of Utah.

Professional profile
Michael Khadavi, MD — IOF Education Committee

Michael Khadavi, MD

Committee Member

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Mike Khadavi is a PM&R, Sports Medicine physician in private practice in Kansas City and also fellowship director at the University of Missouri Department of PM&R. He is team physician for the Kansas City Ballet and Sporting Kansas City, and is currently serving as the President of The Orthobiologic Institute. His research and leadership focuses on orthobiologics and sports medicine.

Professional profile
Joshua Rothenberg, DO — IOF Education Committee

Joshua Rothenberg, DO

Committee Member

Bio coming soon.
04 Research Committee
Committee Leadership
Walter Sussman, DO — IOF Committee Chair
Committee ChairWalter Sussman, DO
View bio

Dr. Sussman is dual board-certified in Physical Medicine & Rehabilitation and Sports Medicine. He co-authored The Atlas of Interventional Orthopedics and serves as an Assistant Clinical Professor for Orthopedics and Rehabilitation at Tufts University School of Medicine.

View IOF Board profile
Primary Responsibilities
  • Identify and oversee grant-funded research initiatives, including projects supported through the DataBiologics Registry.
  • Work with the Resident/Fellow Committee to support academic and research development.
  • Collaborate with Biologic Orthopedic Journal to identify and encourage high-quality publications.

Committee Members

View submitted physician biographies and professional profile links.

William Berrigan, MD — IOF Research Committee

William Berrigan, MD

Committee Member

View bio

William A. Berrigan, MD, RMSK is a board-certified physician in Physical Medicine & Rehabilitation with subspecialty certification in Sports Medicine. His clinical and research interests focus on orthobiologics, musculoskeletal ultrasound, and image-guided interventions for musculoskeletal conditions. Dr. Berrigan has authored more than 20 peer-reviewed publications, including systematic reviews and clinical studies on platelet-rich plasma (PRP), tendon biology, ultrasound-guided procedures, and musculoskeletal imaging. He has presented his research nationally through organizations including the American Medical Society for Sports Medicine (AMSSM), the American Academy of Physical Medicine & Rehabilitation (AAPM&R), the Biologics Association, and the Interventional Orthobiologics Foundation (IOF). He currently serves on the AMSSM Research Committee and the AAPM&R Orthobiologics Curriculum Education Planning Committee. Through his research, educational leadership, and collaborative scholarship, Dr. Berrigan contributes to advancing the evidence base and clinical application of orthobiologic therapies.

Professional profile
Ryan Kruse, MD — IOF Research Committee

Ryan Kruse, MD

Committee Member

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Dr. Ryan Kruse is a Sports Medicine Physician and an Assistant Professor in the Department of Orthopedics and Rehabilitation. He is a team physician for US Soccer, and has also obtained his International Olympic Committee Diploma in Sports Medicine. He completed his Physical Medicine and Rehabilitation residency at the Mayo Clinic and his Sports Medicine fellowship at the University of Iowa. He specializes in the use of sports ultrasound for the diagnosis and treatment of soft tissue injuries including tendons, ligaments, muscles, and nerves. Additionally, he has a special interest in the use of orthobiologic treatments for acute and chronic musculoskeletal conditions, in particular the use of platelet-poor plasma for muscle injuries. He currently has multiple ongoing research studies involving sports ultrasound and orthobiologics. He is involved in numerous national organizations including AMSSM, ACSM, AIUM, and AAPMR, and has taught at the local, regional, national, and international level.

Professional profile
Edilson Machado — IOF Research Committee

Edilson Machado

Committee Member

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Dr. Edilson Machado is an orthopedic surgeon certified by the AMB and CFM with a specialization in Pain Medicine. He holds a Master’s degree in Genetic and Molecular Diagnosis (2007) and a PhD in Medicine from the University of Porto, Portugal. He is a managing partner at Clínica REGENERAR in Porto Alegre. Dr. Edilson is actively involved in training new professionals, serving as a preceptor for fellows and residents and as an instructor for technical training courses in interventional pain management. He is a guest lecturer for the Pain Medicine postgraduate programs . He is a member of several medical and scientific societies, including: SBOT (Regenerative Orthopedics Committee); SOGED (Rio Grande do Sul Society for the Study of Pain – President, 2017–2021); ABDOR (founding member and Scientific Committee President); SBED (Regenerative Medicine Committee President); ABMR (Brazilian Academy of Regenerative Medicine - founder) and SBRET (Brazilian Society for Tissue Regeneration – founder and Spine Committee President). International memberships include NASS, IOF, ICRS, and IASP. Dr. Edilson is a frequent guest speaker at various national and international scientific societies.

Professional profile
Leonardo Oliveira, MD — IOF Research Committee

Leonardo Oliveira, MD

Committee Member

Headshot added. Bio can be added when supplied.
05 Resident/Fellow Committee
Committee Leadership
Christopher Williams, MD — IOF Committee Chair
Committee ChairChristopher Williams, MD
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Dr. Williams is board-certified in Physical Medicine & Rehabilitation, owner and CEO of Interventional Orthopedics of Atlanta, an active researcher and author, and an adjunct faculty member at Emory University.

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Ken Mautner, MD — IOF Committee Chair
Committee ChairKen Mautner, MD
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Dr. Mautner is an Endowed Professor at Emory University and Director of Primary Care Sports Medicine at the Emory Orthopedics and Spine Center, with extensive work in ultrasound-guided and orthobiologic treatment and research.

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Primary Responsibilities
  • Expand awareness of interventional orthobiologics among residents and fellows through educational programs, mentorship, and institutional partnerships.
  • Promote trainee engagement in IOF by facilitating abstract submissions, volunteer opportunities, and participation in the IOF MAX Conference.

Committee Members

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Chris Ha, DO — IOF Resident/Fellow Committee

Chris Ha, DO

Committee Member

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Chris Ha, D.O., is a Physical Medicine and Rehabilitation physician specializing in Musculoskeletal and Regenerative Medicine at the Mayo Clinic in Arizona, where he also serves as Associate Chair of Research for the PM&R department. He specializes in the nonsurgical management of musculoskeletal conditions with a focus on orthobiologics, extracorporeal shockwave therapy, diagnostic musculoskeletal ultrasound, and ultrasound-guided interventions. Dr. Ha earned his medical degree from the University of North Texas Health Science Center, completed his PM&R residency at Mayo Clinic in Rochester, MN, and completed his fellowship in Interventional Sports, Spine, and Regenerative Medicine at the Bodor Clinic in Napa, CA under Dr. Marko Bodor.

Professional profile
Oluseun “Alfy” Olufade, MD — IOF Resident/Fellow Committee

Oluseun “Alfy” Olufade, MD

Committee Member

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Dr. Oluseun Olufade or “Dr. Alfy” (as his patients refer to him) is an Assistant Professor of Orthopedics at Emory School of Medicine. He is board-certified in sports medicine and interventional spine. Dr. Alfy received his undergraduate degree at Rutgers University in New Jersey and went on to attend the Robert Wood Johnson Medical School. He did his residency and post-graduate training at Temple University Hospital and Keystone Healthcare System in Pennsylvania.

Dr. Alfy practices sports medicine and spine care with a special interest in regenerative medicine and orthobiologics. His approach is focused on the non-surgical treatment of orthopedic injuries, including ultrasound and fluoroscopic-guided procedures and the use of cell-based therapy and platelet-rich plasma (PRP). He treats children, adolescents, and adults, and his patients range from high school students to professional athletes. He is involved in extensive research in regenerative medicine and has presented at numerous regional and national conferences.

Dr. Alfy is currently a physician for several athletic teams and organizations, including U.S. Soccer, Atlanta Hawks, Emory University, and Northview High School. He is also actively involved in the American Medical Society for Sports Medicine (AMSSM), where he serves as chair for the Physical Medicine and Rehabilitation (PM&R) subcommittee and co-chair for the Diversity Mentoring Program. Dr. Alfy is also a medical review board member for VeryWellHealth.com and is active in national and local media.

Professional profile
Tammy Penhollow, DO — IOF Resident/Fellow Committee

Tammy Penhollow, DO

Committee Member

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Dr. Tammy J Penhollow's vision: "Setting the global standard for regenerative medicine done right, where science, ethics, and precision converge to restore movement, function, and longevity."

Tammy Penhollow, DO, is board certified in Anesthesiology and Pain Medicine by the American Board of Anesthesiology. She is an Instructor of Anesthesiology, Mayo Clinic Alix College of Medicine, and has her own regenerative orthobiologics practice in Scottsdale, Precision Regenerative Medicine.

Dr. Penhollow earned her BS in Biology from Willamette University, Salem, OR and her DO from Kirksville College of Osteopathic Medicine. After a Transitional Internship, she entered active-duty service as a General Medical Officer with the US Navy. She served as the solo physician for a 720-person Naval Mobile Construction Battalion deployed to Kosovo and Guam. She also taught full time at the Surface Forces Independent Duty Corpsman School in San Diego.

She completed Anesthesiology residency at the National Capital Consortium (Walter Reed Army Medical Center Washington, DC/ National Naval Medical Center Bethesda, MD) with focused months training at Mayo Clinic Jacksonville, Landstuhl Regional Medical Center in Germany, and at Johns Hopkins.

After residency, Dr. Penhollow was a staff anesthesiologist and both founded and directed interventional pain clinics in two overseas locations: US Naval Hospital Okinawa Japan and US Naval Hospital Rota Spain prior to an honorable discharge, completing 12 years of service.

Dr. Penhollow completed a Pain Management Fellowship at Stanford University, CA and began private practice in San Francisco in 2012. She currently serves on the APEX Biologix Interventional Pain Advisory Team and sits on the TOBI Advisory Board.

Since 2014, she practices in Phoenix as an anesthesiologist at Mayo Clinic Hospital and in Scottsdale at her regenerative medicine practice. Dr. Penhollow is passionate about empowering her practice members to achieve optimum health and wellness and is equally passionate about promoting Direct Specialty Care private practice opportunities to doctors in training as well as to her peers.

Professional profile
Ron Torrance, DO — IOF Resident/Fellow Committee

Ron Torrance, DO

Committee Member

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Ronald Torrance II, DO, FAOASM, FACOFP, is an expert in Interventional Orthopedic Sports Medicine, currently practicing as a physician and partner at Regenexx at New Regeneration Orthopedics of Florida, serving Sarasota, Tampa, St. Petersburg, and Orlando. A respected leader in his field, his practice was recognized as the most productive Regenexx affiliate in the country from 2019 thru 2024 (missing once in 2023). Dr. Torrance completed his Sports Medicine Fellowship at RowanSOM-Inspira Hospital in Vineland, New Jersey, following his Family Medicine Residency and D.O. Internship. He holds a medical degree from Lake Erie College of Osteopathic Medicine and is a founding member of the Kresser Institute’s ADAPT Functional Medicine training program.

Dr. Torrance has demonstrated significant leadership across multiple professional societies.  He is the past President of the Hillsborough Osteopathic Medical Society and a current board member.  He currently serves as a Board Trustee for the Florida Osteopathic Medical Association (since 2023). In addition to his clinical practice and committee work, he serves as an Instructor for the Interventional Orthobiologic Foundation (since 2018). His research contributions include co-authoring the Amazon Kindle Sports Medicine Best Seller, "Exercise 2.0: Optimizing Performance throughout the Lifespan," and publishing in the Osteopathic Family Physician. His paper on concussed athletes was awarded the Attending Paper of the Year in 2018.

Before entering medical school, he played an integral role in starting a multi-million dollar medical collections company. Dr. Torrance is an active figure in the sports community, serving as Medical Director for various organizations, including Florida Region USA Volleyball (2020-2021) and Rockstar Beach Volleyball (2017- present), and provided the COVID protocols for the largest beach volleyball tournament of 2020. When not working, he enjoys spending time with family (Abby, Payton, Tripp, and Dallas) and engaging in activities such as CrossFit, Beach Volleyball, team sports, yoga, and cooking. He is also an avid coffee enthusiast.

Professional profile

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