Headquartered in King of Prussia, PA, UHS has more than 90,000 employees and through its subsidiaries operates 26 acute care hospitals, 328 behavioral health facilities, 42 outpatient facilities and ambulatory care access points, an insurance offering, a physician network and various related services located in 37 U.S. states, Washington, D.C., Puerto Rico and the United Kingdom. Operating acute care hospitals, behavioral health facilities, outpatient facilities and ambulatory care access points, an insurance offering, a physician network and various related services located all over the U.S. States, Washington, D.C., Puerto Rico and the United Kingdom.