Blue Cross Blue Shield is one of the leading providers of health insurance services in the United States. Locally owned and operated, the association has more than 35 member companies throughout the country. Operational for more than 75 years, it is headquartered in Wilkes Barre, Pa. Its affiliate companies include Wellpoint Health Networks, CareFirst, Hawaii Medical Service Association, Regence BlueShield of Idaho, Wellmark, Independence Blue Cross, La Cruz Azul de, Triple-S, and Wellmark Blue Cross and Blue Shield. The association also provides online information about customer services, health resources, community practices, national health care issues, BlueCard doctor and hospital finder facilities, and 24-emergency support.