Operational since 1978, Prison Health Services, also known as PHS, offers health care assistance to patients in jails, prisons and juvenile facilities throughout the United States. It is accredited by the National Commission on Correctional Health Care and the American Correctional Association. The company also provides utilization and formulary management services. Prison Health Services is a member of the Academy of Correctional Health Care Professionals, American Jail Association, Society of Correctional Physicians and National Sheriffs Association. With a team of more than 4,000 health professionals, the company also provides pharmacy and staffing management and mental health services.