Emergency Medical Services Corporation Stock

Envision Healthcare Corporation, formerly Emergency Medical Services Corporation, is a provider of medical transportation services and facility based physician services in the United States. The Company business and market the services under the AMR and EmCare brands, which represent American Medical Response, Inc. and EmCare Holdings Inc. The Company provides ambulance transport services in 38 states and the District of Columbia and provides facility based physician services in 40 states and the District of Columbia. During the year ended December 31, 2010, it provided services in approximately 14 million patient encounters in more than 2,000 communities.