Kaiser Permanente is one of the nation’s largest not-for-profit health plans. At Kaiser Permanente, physicians are responsible for medical decisions. The Permanente Medical Groups, which provide care for Kaiser Permanente members, continuously develop and refine medical practices to help ensure that care is delivered in the most efficient and effective manner possible. Founded in 1945, Kaiser Permanente headquartered in Oakland, California, comprises: Kaiser Foundation Health Plan, Inc., Kaiser Foundation Hospitals and its subsidiaries, and The Permanente Medical Groups.