St. John's Health System, part of the Sisters of Mercy-St. Louis organization, serves Southwestern Missouri and Northern Arkansas. The system includes St. John's Regional Health Center and five other acute-care facilities (all operating under the St. John's Hospital name) and a network of some 70 clinics operating as St. John's Clinics. The company also administers health plans, offering claims processing and payment, corporate health and wellness programs, medical management, and plan consulting and implementation services through its Health Plan division. Its five regional hospitals are located in Missouri in the cities of Aurora, Cassville, Lebanon, and Mountain View, as well as in Berryville, Arkansas.