Lawrence Barnard. President and CEO of San Martin Campus Hospital (Las Vegas). Through the years, Mr. Barnard has held multiple positions in the healthcare field. From 2012 to 2014, he served as COO of Las Vegas-based University Medical Center of Southern Nevada. In January 2014, he took the helm as CEO of UMC, but in December of the same year, he left to become CEO of Dignity Health's San Martin Campus Hospital, part of Dignity Health's St. Rose Dominican campus.