Our Medical Professionals

Leading Hip Surgeons and Specialists

The doctors that form the MASH Study Group are some of the world’s top medical specialists in the area of hip surgery.

Dominic S. Carreira, M.D.

Peachtree Orthopedics, Atlanta, GA
Dominic S. Carreira, M.D. is a board-certified orthopedic surgeon and arthroscopy specialist with advanced training from three orthopedic fellowship programs, specializing in ankle, sports medicine, ...
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John J. Christoforetti, M.D.

Arthroscopic Surgeon, Bethesda, MD
John J Christoforetti, MD FAAOS is a board-certified orthopedic surgeon with over 15 years of experience treating hip, shoulder and knee injuries with arthroscopic surgery ...
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Dean Matsuda, M.D.

Director of Hip Arthroscopy DISC Sports and Spine Center
Dean K. Matsuda is a board-certified orthopedic surgeon and CEO of Premier Hip Arthroscopy in Los Angeles, California. With over three decades of experience, he ...
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Shane J. Nho, M.D., M.S.

Head, Section of Young Adult Hip Surgery, Co-Director, Division of Sports Medicine, Assistant Professor, Co-Director, Sports Medicine Fellowship, Department of Orthopedic Surgery Rush University Medical Center
Dr. Shane Nho is a board certified, fellowship trained orthopedic surgeon and associate professor in the department of orthopedic surgery and co-director of the sports ...
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Anil S. Ranawat, M.D.

Sports Medicine, Hip Preservation, HSS | Hospital for Special Surgery
Dr. Anil Ranawat is an orthopedic surgeon at HSS focusing on sports injuries of the hip, knee and shoulder. He is constantly pushing state-of-the-art advancements ...
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John P. Salvo, Jr., M.D.

Hip and Sports Medicine Surgeon, Rothman Institute, Clinical Associate Professor, Orthopedic Surgery, Thomas Jefferson University Hospital
Dr. Salvo is double board certified in orthopaedic surgery and sports medicine by the American Board of Orthopaedic Surgeons. He specializes in sports injuries, knee ...
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Geoffrey S. Van Thiel, M.D./M.B.A.

Rockford Orthopedic; Faculty – Orthopedics, Rush University Medical Center
Dr. Geoffrey Van Thiel attended UCLA Medical School (MD) and completed a Masters in Business Administration (MBA) from the UCLA School of Business. He then ...
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Andrew B. Wolff, M.D.

Orthopaedic Surgeon, Hip Preservation and Sports Medicine, Washington Orthopaedics and Sports Medicine
Dr. Wolff is a board-certified fellowship trained orthopaedic surgeon who specializes in hip arthroscopy, hip preservation and sports medicine. He has been in practice in ...
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Andrew Jimenez, M.D.

Assistant Professor of Orthopaedics & Rehabilitation, Yale School of Medicine
Dr. Jimenez is a dual fellowship-trained orthopedic surgeon specializing in sports medicine and hip preservation. He graduated from Brown University where he was a collegiate ...
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Mahad Hassan, M.D.

Assistant Professor, Department of Orthopedic Surgery, University of Minnesota
Dr. Hassan is an academic sports medicine and hip preservation surgeon at the University of Minnesota and TRIA Orthopaedic Center. He is an assistant professor ...
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Thomas H. Wuerz, MD, MSc, MS

Orthopedic Surgeon, New England Baptist Hospital
Dr. Thomas Wuerz is a Board-certified orthopedic surgeon with a specialized focus on hip arthroscopic surgery, an area where he has established himself as a ...
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Michael K. Ryan, M.D.

Orthopaedic Surgeon – Hip Preservation & Sports Medicine Specialist
Michael K. Ryan, MD, is a dual board-certified fellowship-trained orthopaedic surgeon, specializing in sports medicine and hip preservation surgery (including hip arthroscopy, PAO, and other ...
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