Envision Healthcare, a leading US provider of outsourced medical and ambulance services, raised $966 million on Tuesday by offering 42 million shares at $23, the high end of the range of $20 to $23. The company had originally filed to offer 35 million shares. Envision Healthcare plans to list on the NYSE under the symbol "EVHC". Goldman Sachs, Barclays, BofA Merrill Lynch and Citigroup acted as the lead bookrunners on the deal.