Site Map Copyright© 2008 Golden Rule Insurance Company. UnitedHealthOne is the brand name of the UnitedHealthcare family of companies that offer personal health insurance products. Products are either underwritten, administered or provided by: Golden Rule Insurance Company (Indiana domiciled, CA certificate of authority number 4407), American Medical Security Life Insurance Company (Wisconsin domiciled, CA certificate of authority number 08079), PacifiCare Life and Health Insurance Company (Indiana domiciled, CA certificate of authority number 5813), PacifiCare Life Assurance Company (Colorado domiciled, CA certificate of authority number 5814), PacifiCare of California (California domiciled, CA certificate of authority number 213 0126), or PacifiCare Health Plan Administrators, Inc., Oxford Health Insurance, Inc., Oxford Health Plans (NJ), Inc., or United Healthcare Insurance Company. Product availability varies by state.