HCA Healthcare, Inc. is a holding company. The Company is primarily engaged in providing healthcare services. Its general, acute care hospitals typically provide 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. Outpatient and ancillary healthcare services are provided by its general, acute care hospitals, freestanding surgery centers, freestanding emergency care facilities, urgent care facilities, walk-in clinics, diagnostic centers and rehabilitation facilities. Its psychiatric hospitals provide a full range of mental healthcare services through inpatient, partial hospitalization and outpatient settings. The Company operates in two geographically organized groups: the National and American Groups. It operates over 182 hospitals, approximately 126 freestanding surgery centers, and over 21 freestanding endoscopy centers.