Mark Klion

Mark Klion, MD, is a board-certified orthopedic surgeon with specialty training in sports medicine. After receiving a bachelor’s degree from St. Lawrence University, he went on to obtain his medical degree from the Mount Sinai School of Medicine. He completed his residency in orthopedic surgery at Mount Sinai Hospital. He then completed a fellowship in sports medicine at the University of Chicago, where he gained specialization in arthroscopic surgery and reconstructive knee and shoulder surgery. Klion is a clinical instructor at the Mount Sinai School of Medicine and is an active member of the 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, a level II trauma center. Klion has participated in 11 Ironman triathlons, including Hawaii Ironman 2000 and 2001. He has completed 15 marathons in addition to many ultradistance running and biking races. He serves as the medical director for the New York City Triathlon. He has published numerous articles on sports medicine issues and has appeared on both regional and national radio and television programs. He is active in the triathlon and endurance community, providing lectures about sports-medicine-related issues to local clubs and groups.