John A. Martin, Jr., M.D. Team Physician Hired in Not Known John A. Martin Jr. MD Medical Director/Team Physician Orthopaedic Surgeon A graduate of Jefferson Medical College, Dr. Martin completed his Orthopaedic Surgery residency at the prestigeous Thomas Jefferson University Hospital and The Rothman Institute. Followed by a Sports Medicine fellowship at The Center for Sports Medicine and Science of Temple University, Dr. Martin began practice in 1992. Specializing in minimally invasive surgery, arthroscopic surgery and joint replacement of the knee and shoulder Dr. Martin brings over sixteen seasons of professional team experience for the benefit of athletes at all levels of competition.