Dr Allison Liefeld Fillar MD

Walter C. Hembree, MD, is a board-certified orthopedic surgeon, fellowship trained in foot and ankle surgery. He sees patients at MedStar Union Memorial Hospital and MedStar Harbor Hospital.

Richard Y. Hinton, MD, MPH, PT is the medical director of MedStar Sports Medicine, director of the MedStar Sports Medicine Fellowship Program, and an attending orthopaedic surgeon at MedStar Union Memorial Hospital in Baltimore, Maryland. He concentrates on knee and shoulder conditions and specializes in ACL (anterior cruciate ligament) reconstruction and revision surgery. Prior to attending medical school, he trained at the University of North Carolina at Chapel Hill and the University of Virginia, ultimately working as a physical therapist and certified athletic trainer. He then earned a medical degree from The Johns Hopkins School of Medicine. In addition, he completed a residency in orthopaedic surgery at MedStar Union Memorial and fellowship training in both pediatric orthopaedic surgery and adult sports medicine at MedStar Union Memorial and Johns Hopkins Hospital. He then received a Master of Public Health from Johns Hopkins University, focusing on epidemiology and injury prevention. Dr. Hinton has served as a team physician for several professional, scholastic and youth sports organizations, such as the Baltimore Ravens, Towson University, Loyola University, Morgan State University and the Women's U.S. National Lacrosse Team. He is an executive board member of US Lacrosse's Sports Science Committee and co-directs the nation's leading lacrosse-specific sports medicine program at MedStar Health. Additionally, he has served as president of the Maryland Orthopaedic Association and held membership on various AOSSM committees, as well as the Maryland Board of Physicians Athletic Trainers Oversight Committee.

Dr. Gregory Guyton is the Division Chief of Foot and Ankle Surgery, and the Fellowship Director, at MedStar Union Memorial Hospital. He is a board-certified orthopaedic surgeon, fellowship trained in foot and ankle reconstruction. Dr. Guyton sees patients in Timonium, Hunt Valley, Bel Air, and at MedStar Union Memorial Hospital in Baltimore.