Mark Klion, MD, is a board-certified orthopedic surgeon and sports medicine specialist. After receiving a bachelor’s degree from St. Lawrence University in upstate New York, he earned his medical degree from the Mount Sinai School of Medicine in New York City. He completed his residency in orthopedic surgery at Mount Sinai Hospital. He then completed a sports medicine fellowship at the University of Chicago. During his fellowship he specialized in arthroscopic surgery and reconstructive knee and shoulder surgery. He is a clinical instructor at the Mount Sinai School of Medicine and a member of their shoulder and sports medicine service. He serves as an educator for the medical school and the department of orthopedic surgery. He is also the director of orthopedics at St. Barnabas Hospital in New York. He performs the newest techniques for cartilage repair, regeneration, and meniscal transplantation. Dr. Klion has extensive experience with arthroscopic rotator cuff repairs and shoulder stabilization procedures.
Dr. Klion is also an avid triathlete and marathon runner. He has completed 10 Ironman triathlons, including Hawaii Ironmans in 2000 and 2001. He has completed 15 marathons and several ultradistance races. He created the DVD series BodyworksMD, a physician-guided physical therapy rehabilitation program. He serves as the medical codirector for the New York City Triathlon and Toughman Half Ironman and is the orthopedic consultant for the Triathlon Academy and Foundation bicycle team.