Tenet Healthcare Corp., Dallas, made new executive appointments in South Carolina. Mark O'Neil Jr. was named market CEO of Hilton Head Regional Healthcare, which includes two hospitals and some outpatient centers. William Masterton was named CEO of one of those two hospitals, 41-bed Coastal Carolina Hospital, Hardeeville.
O'Neil, 57, most recently was chief operating officer of Catholic Health East, Newtown Square, Pa. O'Neil also worked as a division and local market executive for the system. Before joining Catholic Health East, he worked in various executive roles for United Health Services, Binghamton, N.Y. He will replace Elizabeth Lamkin, who resigned in April, according to a Tenet spokesman. His appointment is effective Nov. 30.