Hanger Prosthetics and Orthotics Inc. specialize in assisting amputees and individuals with musculoskeletal disabilities and injuries. It is a division of Hanger Orthopedic Group Inc. and one of the leading providers of prosthetics and orthotics in the United States. Hanger Orthopedic Group Inc. is one of the leading providers of orthotic and prosthetic patient care services in the world. The firm owns and operates more than 675 patient care centers in 45 states and the District of Columbia.