Mayo Clinic (Rochester, Minn.). Mayo Clinic's Rochester campus comprises the 794-bed Mayo Clinic Hospital, Methodist Campus and the 1,265-bed Mayo Clinic Hospital, Saint Marys Campus. The Methodist campus is known for its transplant programs, obstetric and gynecology services and women's cancer program, among other services. The Saint Marys Campus is a Level 1 trauma center and offers computer-assisted neurosurgery as well as heart transplants. About 2,289 staff physicians and scientists serve at the Mayo Clinic Rochester campus. Mayo Clinic ranked No. 1 among all hospitals in the country in the U.S. News & World Report's 2016-17 rankings.