HCA Healthcare, Inc., through its subsidiaries, provides health care services company in the United States. The company operates general and acute care hospitals that offers medical and surgical services, including inpatient care, intensive care, cardiac care, diagnostic, and emergency services; and outpatient services, such as outpatient surgery, laboratory, radiology, respiratory therapy, cardiology, and physical therapy. It also operates outpatient health care facilities consisting of freestanding ambulatory surgery centers, freestanding emergency care facilities, urgent care facilities, walk-in clinics, diagnostic and imaging centers, rehabilitation and physical therapy centers, radiation and oncology therapy centers, physician practices, and various other facilities. In addition, the company operates psychiatric hospitals, which provide therapeutic programs comprising child, adolescent and adult psychiatric care, adolescent and adult alcohol, drug abuse treatment, and counseling services. As of December 31, 2021, it operated 182 hospitals, including 175 general and acute care hospitals, five psychiatric hospitals, and two rehabilitation hospitals; 125 freestanding surgery centers; and 21 freestanding endoscopy centers in 20 states and England. The company was formerly known as HCA Holdings, Inc. HCA Healthcare, Inc. was founded in 1968 and is headquartered in Nashville, Tennessee.