Corizon Health, Inc., formed by a 2011 merger of Correctional Medical Services, Inc. (CMS) and Prison Health Services, Inc. (PHS), is a privately held prison healthcare contractor in the United States. The company provides healthcare and pharmacy services (PharmaCorr) to approximately 28 clients in 15 U.S. states, including 139 state prisons, municipal jails, and other facilities. Serving over 115,000 inmates, Corizon Health offers dental, mental health, optometry services, and substance abuse treatment as well as general healthcare. The company is headquartered in Brentwood, Tennessee.