Kaiser Permanente is America's leading integrated health care organization. Founded in 1945, it is a nonprofit health plan, with headquarters in Oakland, California. Kaiser Permanente serves the health care needs of members in nine states and Washington, D.C.
Today, it encompasses Kaiser Foundation Health Plan, Inc., Kaiser Foundation Hospitals, and the Permanente Medical Groups, and it has an affiliation with Group Health Cooperative, based in Seattle, Washington. Most members join through their employers, who pay part or all of the monthly dues. Kaiser has multiple operating units providing coverage in the following select markets Northern California: East Bay, Fresno, Golden Gate, North East Bay, South Bay, Stanislaus County, Valley, Southern California: Coachella Valley, Inland Empire, Kern County, metropolitan Los Angeles/West Los Angeles, Orange County, San Diego County, the Valleys, Tri-Central, western Ventura County, Colorado: Denver, Boulder, Colorado Springs, Georgia: Atlanta, Hawaii: Oahu, Hawaii, Kauai, Maui, Mid-Atlantic States: Washington, D.C., suburban Maryland, northern Virginia, Baltimore, Ohio: Cleveland, Akron and Oregon/Washington: Portland (includes Salem/Longview).