Universal Health Services, Inc., owns and operates through its subsidiaries, acute care hospitals, behavioral health centers, surgical hospitals, ambulatory surgery centers and radiation oncology centers. As of February 28, 2013, it owned and/or operated 23 acute care hospitals and 197 behavioral health centers located in 37 states, Washington, D.C., Puerto Rico and the United States, Virgin Islands. As part of its ambulatory treatment centers division, it manages and/or own outright or in partnerships with physicians, five surgical hospitals and surgery and radiation oncology centers located in four states. Its operating segments consists of acute care hospital services and behavioral health care services. In April 2014, Universal Health Services Inc completed the acquisition of the Psychiatric Institute of Washington (PIW), a 124-bed behavioral health care facility and outpatient treatment center located in the District of Columbia.