AetnaAmerica's 1st ChoiceAmerican Republic Insurance CompanyBanner HealthBlue Cross Blue Shield of ArizonaCaterpillarCignaConsolidated Health PlansGalaxy HealthHealth Choice ArizonaMedicareMemorial HermannMercy CareModa HealthMolina HealthcareMultiplan PHCSPOMCOThree Rivers Providers Network (TRPN)TricareTriwest Healthcare AllianceTufts Health PlanUS Health GroupUSA Managed Care OrganizationUnitedHealthOneUnitedHealthcare