•Ochsner Health System in New Orleans announced that President and Chief Operating Officer Warner Thomas will succeed Patrick Quinlan as chief executive officer on Sept. 1. Quinlan, who has led the system since 2001, will head the new Ochsner Center for Community Wellness and Health Policy, and will continue to be on the system's board of directors. One of the most notable accomplishments of Quinlan's tenure is the 2001 unification of the Ochsner Clinic and Ochsner Foundation Hospital. Thomas is the 2012 chair of the American Hospital Association's Section for Healthcare Systems.

Deborah A. Feldman will become president and CEO of the Children's Medical Center of Dayton (Ohio), succeeding David Kinsaul when he retires July 1. Kinsaul led the hospital for nine years. Feldman was administrator of Montgomery County, Ohio, for the last 15 years.

Kim Milstien was appointed president and CEO of Adventist Health's Simi Valley Hospital in southern California. She was vice president of business development at Glendale (Calif.) Adventist Medical Center.

•Saint Luke's Health System appointed Ron Baker CEO of Saint Luke's East Hospital, Lee's Summit, Mo. Baker was CEO of Cushing Memorial Hospital in Leavenworth, Kan., a member of Saint Luke's Health System. Baker succeeds George Pagels, M.D., who assumed leadership of Saint Luke's East Hospital in 2003. Pagels, who in February announced his plans to retire, will continue as Saint Luke's Health System's chief medical officer until a replacement is appointed.

Paul S. Viviano became CEO of UC San Diego Health System and associate vice chancellor for health sciences on June 1. He was chairman of the board and CEO of Alliance HealthCare Services, Newport Beach, Calif.

•Dignity Health named Thomas Salerno president and CEO of St. Mary Medical Center, Long Beach, Calif., and Craig Marks president of Mark Twain St. Joseph's Hospital, San Andreas, Calif. Salerno has more than 25 years of experience as CEO in hospitals. Marks was president and CEO of Western Missouri Medical Center in Warrensburg.

Wayne Smith was named president and CEO of SoutheastHEALTH, Cape Girardeau, Mo. Smith joined Southeast in 2010 as vice president of human resources and development.

•Universal Health Services Inc., King of Prussia, Pa., named Barry A. Wolfman CEO and managing director of the George Washington University Hospital in Washington, D.C. He was chief executive at Providence Saint Joseph Medical Center in Burbank, Calif.

•HCA, Nashville, Tenn., appointed Sylvia Young president of the Continental Division, which comprises seven Denver-area hospitals in the HealthONE system and Wesley Medical Center and Galichia Heart Hospital in Wichita, Kan. She replaced Jeff Dorsey, who announced his retirement in March. Young was president of HCA's Sunrise Health System.

•Steward Health Care System LLC, Boston, named Andrew Davis president of Carney Hospital, Dorchester, Mass. He was CEO of Davis Regional Medical Center in Statesville, N.C.

Michael Murphy was appointed president and CEO of Iowa Health System's accountable care organization. He will lead IHS in transitioning from a fee-for-service reimbursement environment to one that rewards quality. Murphy was executive vice president for health networks at Trinity Health in Novi, Mich.

Stephen M. Erixon became CEO of LifePoint Hospitals' Lander (Wyo.) Hospital in June. He was interim CEO at Rainy Lake Medical Center in International Falls. Minn.

•Kindred Healthcare, Louisville, Ky., appointed Benjamin A. Breier president and chief operating officer. He had been COO since August 2012. William M. Altman was promoted from senior vice president to executive vice president for strategy, policy and integrated care. Joseph L. Landenwich was promoted from senior vice president of corporate legal affairs and corporate secretary to co-general counsel and corporate secretary.

Cindy S. Sexton became vice president and chief financial officer of St. David's HealthCare, Austin, Texas, in June. She was CFO of St. David's North Austin Medical Center. The health care system includes seven hospitals in central Texas.