The Kaiser Richmond Field Hospital for the Richmond Shipyards was financed by the
U.S. Maritime Commission, and opened on August 10, 1942. Sponsored by Kaiser's Permanente Foundation, it was run by Medical Director
Sidney R. Garfield, M.D. The Field Hospital served as the mid-level component of a three-tier medical care system that also included six well-equipped First Aid Stations at the individual shipyards, and the main Permanente Hospital in
Oakland, where the most critical cases were treated. Together, these facilities served the employees of the Kaiser shipyards who had signed up for the Permanente Health Plan (commonly referred to as the "Kaiser Plan"), one of the country's first voluntary pre-paid medical plans, and a direct precursor to the
health maintenance organizations (HMOs) defined by the federal HMO Act of 1973. By August 1944, 92.2 percent of all Richmond shipyard employees had joined the plan, the first voluntary group plan in the country to feature group medical practice, prepayment and substantial medical facilities on such a large scale. After the war ended, the Health Plan was expanded to include workers' families. By 1990,
Kaiser Permanente was still the country's largest nonprofit HMO. In part due to wartime materials rationing, the Field Hospital is a single-story wood frame structure designed in a simple modernist mode. Originally intended for use primarily as an emergency facility, the Field Hospital opened with only 10 beds. Later additions increased its capacity to 160 beds by 1944. The Field Hospital operated as a Kaiser Permanente hospital until closing in 1995. Kaiser conducted its first medical research at the facility in 1942 and later at another site before abandoning animal research all together in favor of correlational studies in 1958. ==Current status==