American Medical Response serves more communities and customers than any other private ambulance service provider in the nation. It has more than 17,000 paramedics, emergency medical technicians, nurses, doctors and support staff. AMR s customers include communities, hospitals, nursing homes, payors and individual patients. American Medical Response works with health care research companies to develop new and innovative services, such as cardiac case management with remote heart monitoring. It also works with manufacturing organizations to improve the design of medical equipment, such as head immobilizers and gurneys. AMR was founded in 1992 through the consolidation of several well-established regional ambulance companies. The company has more than 250 community-based branches throughout the United States, including its facility in Billings, Mont.