(US) HCA Healthcare, Inc. is a health care services company, which engages in operating hospitals, freestanding surgery centers and emergency rooms, and urgent care centers. It offers a full range of services to accommodate such medical specialties as internal medicine, general surgery, cardiology, oncology, neurosurgery, orthopedics and obstetrics, as well as diagnostic and emergency services. The company was founded by Dr. Thomas Frist Sr., Dr. Thomas Frist Jr., and Jack Massey in 1968 and is headquartered in Nashville, TN.