Admar CorpAetna US Healthcare - HMO Aetna US Healthcare - POSAetna US Healthcare - PPO Aetna Vision OneAmacore Vision American Administrative GroupAmeriGroup MC/MD Ancillary Care ServicesAvesis Vision BCBS Blue ChoiceBCBS FED Select BCBS Health SelectBCBS HMO Blue BCBS PAR PlanBCE Emergis Beech Street PPO/WCBlock Vision of Texas - Commercial Blue Bell CreameriesCigna - HMO Cigna - PPOCigna Open Access Cigna Open Access PlusCoventry (CCN)Emerald Health Network Employee Benefits Management CorpEvolutions Healthcare Systems EyeMed Vision PlanFirst Health First Look Vision - AlwaysCareFOCUS Healthcare Fortified Provider NetworkGalaxy Health NetworkHealth Management Network HealthMarketsHealthSmart PPO Hertitage Vision Plans, Inc.Humana Vision Care Plan IHG (Accountable Health Plan of America)Insurance Design Administrators Insurers Administrative CorporationInterGroup Services Corporations Iron Workers Local Trust FundMedicare Part B MES VisionMolina Medicare MultiPlan PPONational Choice Care National Preferred Provider NetworkNational Provider Network PPO National Vision AdministratorOptiCare Eye Health Network Plan Care AmericaPlan Vista Solutions (NPPN) Plasterers LocalPPONext (HHPO/Medical Contraol, Inc.)Prime Health Services Inc. Principal Financial GroupPrivate Healthcare System PPO Professional Claims ManagementSafeGuard VisionStratose Superior VisionTexas Municipal League PPO Texas True Choice PPOThree Rivers Provider Network TriCare Certification ApplicationUnited Healthcare HMO United Healthcare Medicare/MedicaidUnited Healthcare PPO/HMO United Payors & United Provider PPOUSA Managed Care Organization PPO Vision Care AdvantageVision Service PlanXL Health