Welcome To Barnhill Sports Medicine! The Barnhill Sports Medicine Clinic consists of Bill Barnhill M.D. and Clay Stewart M.D. Dr. Barnhill is an orthopedic surgeon who specializes in knee and shoulder injuries. Dr. Stewart is a family practice sports medicine physician who specializes in non surgical orthopedic injuries. About Us | Patient Information | Physicians | Patient Education | links Barnhill Sports Medicine Phone: 806.350.3500    Fax: 806.359.3094 7000 W. 9th Amarillo, TX 79106 © Copyright 2006 Barnhill Sports Medicine Power By leadingMD.com, inc.