Centene Corp.'s Centurion Arizona has been selected by Arizona's Department of Corrections to provide health care services to inmates in the prison system. The 2-year contract is expected to begin July 1 and will include three, 1-year renewal options. More than 1,000 full-time employees will be staffed at state-run prisons throughout Arizona to provide services, such as medical, dental, mental health and others for a daily population of about 33,700.