Nathan Vooys has been named chief executive officer of Terre Haute Regional Hospital. He most recently served as chief operating officer at Ocala Health Systems in Florida. Prior to Ocala, Vooys served as COO at Santa Rosa Medical Center in Milton, Florida. He received his Bachelors of Science from Vanderbilt University and his Master’s in Business Administration from University of Southern California. Mary Ann Conroy, Regional’s CEO since 2011, announced her retirement in November, 2016.