St. Mary's Regional Medical Center is a hospital located in Enid, Oklahoma. It was founded in 1915 as Enid Government Springs Sanatorium by Dr. G.A. Boyle and Dr. T.B. Hinson. In 1921, Boyle retired, leaving Hinson in charge. Ownership and operations were transferred to the Sisters Adorers of the Precious Blood on June 1, 1937. Hinson died in 1938, and the hospital was renamed St. Mary’s Springs Hospital.