Answer
Bill Mallon is an orthopedic surgeon. Orthopedic surgeons are medical doctors who specialize in the treatment of disorders of the musculoskeletal system. This includes the bones, joints, muscles, ligaments, and tendons. Orthopedic surgeons perform surgery to repair or replace damaged or diseased bones, joints, and other structures of the musculoskeletal system. They also provide non-surgical treatments such as physical therapy, bracing, and medication.