Headquartered in the competitive Dallas-Fort Worth health market, Texas Health Resources is one of the largest faith-based, nonprofit health care delivery systems in the United States and the largest in North Texas in terms of patients served. The system's primary service area consists of 16 counties in north central Texas, home to more than 7 million people. Texas Health was formed in 1997 with the assets of Fort Worth-based Harris Methodist Health System and Dallas-based Presbyterian Healthcare Resources. Later that year, Arlington Memorial Hospital joined the Texas Health system. Texas Health has 29 acute-care and short-stay hospitals that are owned, operated, joint-ventured or affiliated with the system. It has more than 3,800 licensed beds, employs more than 24,000 people, and counts more than 5,500 physicians with active staff privileges at its hospitals.