Mark Chilton, M.D. is a board certified orthopaedic surgeon with the Mid-Maryland Musculoskeletal Institute (MMI) division in Frederick and Urbana, Maryland. Dr. Chilton sees all manner of orthopaedic complaints, from fracture care to sports injuries. The main focus of his practice is joint replacement of the hip and knee. He has published numerous orthopaedic papers including articles on non-operative treatment of low back injury in athletes and is a much sought after speaker. Dr. Chilton believes in giving back to the community where he lives and practices. He has volunteered his time for many years as a team physician for local high school and college teams and is a team physician for the Frederick Keys, the Single A Minor League affiliate of the Baltimore Orioles.