§ American National Insurance Company
§ Aetna
§ American Medical Security Life Insurance Company
§ Anthem
§ Assurant
§ Blue Cross and Blue Shield Association
§ CIGNA
§ COMMUNITY HEALTH PLAN OF WASHINGTON
§ Fortis
§ Golden Rule Insurance Company
§ Harvard Community Health Plan
§ Insurance Services of America
§ LifeWise Health Plan of Arizona
§ LifeWise Health Plan of Oregon
§ LifeWise Health Plan of Washington
§ UNICARE
§ UnitedHealthCare (UnitedHealth recently purchased Pacificare & United Medical Resources)