Kaiser Permanente Washington, headquartered in Seattle, Washington, provides and coordinates complete health care services for more than 650,000 members through 26 medical centers. Founded in 1947, Kaiser Permanente Washington existed for nearly 70 years as Group Health Cooperative, a regional nonprofit which gained national recognition for medical quality, disease prevention, and evidence-based treatments. Kaiser Permanente welcomed Group Health, its medical centers and members, into the Kaiser Permanente family in 2017 creating Kaiser Permanente's eighth region. Kaiser Permanente of Washington is a total health organization comprising Kaiser Foundation Health Plan of Washington, and the Washington Permanente Medical Group, P.C., formerly Group Health Physicians, an independent medical group that features more than 1,000 physicians.
