Marin General Hospital opened in 1952, wholly administered by the Marin Healthcare District, which was established 6 years prior. In 1961, 116 beds were added. In 1981, funding in the form of a bond was secured to construct the building's west wing, adding 78 beds. Four years later, the Marin Healthcare District Board leased the hospital to the nonprofit Marin General Hospital Corporation under a 30-year agreement, who entered an affiliation with
California Healthcare Systems (CHS) shortly after. In 1995, ownership and operation was transferred to
Sutter Health following their acquisition of CHS. On June 30, 2010, Marin Healthcare District resumed control of Marin General Hospital. On July 30, 2019, Marin General Hospital became MarinHealth Medical Center. As part of the change, the Marin General Hospital Foundation became the MarinHealth Foundation. == Operations ==