Kevin O’Toole has been named CEO of Managed Health Services, an Indiana-based unit of St. Louis-based Centene Corp. Managed Health Services administers health benefits for Hoosiers enrolled in Medicaid and the Healthy Indiana Plan, and also sells individual health insurance on the Obamacare exchange. O’Toole replaces Patrick Rooney, who has been promoted to senior vice president of health plans at Centene, overseeing five states, including Indiana. O’Toole joined Centene in 2012 as vice president of health plan operations in St. Louis. He previously worked as vice president of operations of Medco Health Solutions Inc. in Tennessee. O’Toole has a bachelor’s degree in microbiology, a master’s of health administration, and an MBA, all from the University of Missouri-Columbia.