AetnaAmerican Republic Insurance CompanyAnthem Blue CrossAnthem Blue Cross Blue ShieldArkansas Blue Cross Blue ShieldBlue Cross Blue ShieldBlue Cross Blue Shield Federal Employee ProgramBlue Cross Blue Shield of ArizonaBlue Cross Blue Shield of GeorgiaBlue Cross Blue Shield of IllinoisBlue Cross Blue Shield of KansasBlue Cross Blue Shield of Kansas CityBlue Cross Blue Shield of LouisianaBlue Cross Blue Shield of MassachusettsBlue Cross Blue Shield of MichiganBlue Cross Blue Shield of MinnesotaBlue Cross Blue Shield of NebraskaBlue Cross Blue Shield of New MexicoBlue Cross Blue Shield of North CarolinaBlue Cross Blue Shield of Rhode IslandBlue Cross Blue Shield of South CarolinaBlue Cross Blue Shield of TexasBlue Cross Blue Shield of VermontBlue Cross Blue Shield of WyomingBlue Cross of IdahoBlue Cross of Northeastern PennsylvaniaBlue Shield of CaliforniaBlue Shield of Northeastern New YorkBright HealthCBA BlueCapital Blue CrossCare N' CareCareFirst Blue Cross Blue Shield (Health)CignaConsolidated Health PlansEmpire Blue Cross Blue Shield (Health)First Health (Coventry Health Care)Florida Blue: Blue Cross Blue Shield of FloridaGeoBlueHealth NetHealthSmartHighmark Blue Cross Blue ShieldHighmark Blue Cross Blue Shield of DelawareHighmark Blue ShieldHorizon Blue Cross Blue Shield of New JerseyHumanaIMS (Independent Medical Systems)Imperial Insurance Company of TexasIndependence Blue CrossMedicareMemorial HermannModa HealthMultiplan PHCSOscar Health Insurance Co.POMCOPremera Blue CrossPrime Health Services, IncRegence Blue Cross Blue ShieldSuperior HealthPlanTexanPlusTriple-S Salud: Blue Cross Blue Shield of Puerto RicoTufts Health PlanUS Health GroupUSA Managed Care OrganizationUnitedHealthOneWellcareWellmark Blue Cross Blue ShieldWorkers' Compensation