- Alabama: Blue Cross and Blue Shield of Alabama, Cigna, Humana, UnitedHealthcare, Viva Health
- Alaska: Aetna, Humana, UnitedHealthcare
- Arizona: Blue Cross and Blue Shield of Arizona, Centene, Cigna, Humana, UnitedHealthcare
- Arkansas: Aetna, Humana, UnitedHealthcare, USAble Mutual, WellCare
- California: Blue Shield of California, Centene, Kaiser Permanente, SCAN Health Plan, UnitedHealthcare
- Colorado: Aetna, Denver Health Medical Plan, Humana, Kaiser Permanente, UnitedHealthcare
- Connecticut: Aetna, Anthem, EmblemHealth, UnitedHealthcare, WellCare
- Delaware: Aetna, Cigna, Horizon Blue Cross and Blue Shield of New Jersey, Humana, UnitedHealthcare
- Florida: Aetna, Anthem, Florida Blue, Humana, UnitedHealthcare
- Georgia: Aetna, Humana, Kaiser Permanente, UnitedHealthcare, WellCare
- Hawaii: HMSA, Humana, Kaiser Permanente, UnitedHealthcare, WellCare
- Idaho: Blue Cross of Idaho, PacificSource, Regence BlueShield, SelectHealth, UnitedHealthcare
- Illinois: Aetna, Health Alliance Medical Plans, Health Care Service Corporation (HCSC), Humana, UnitedHealthcare
- Indiana: Aetna, Anthem, Blue Cross Blue Shield of Michigan, Humana, UnitedHealthcare
- Iowa: Aetna, Health Alliance Medical Plans, HealthPartners UnityPoint Health, Humana, UnitedHealthcare
- Kansas: Aetna, Blue Cross and Blue Shield of Kansas City, Highmark, Humana, UnitedHealthcare
- Kentucky: Aetna, Anthem, Humana, UnitedHealthcare, WellCare
- Louisiana: Humana, Peoples Health, UnitedHealthcare, Vantage Health Plan, WellCare
- Maine: Aetna, Humana, Martin’s Point Health Care, UnitedHealthcare, WellCare
- Maryland: Aetna, Cigna, Johns Hopkins Healthcare, UnitedHealthcare, University of Maryland Health Advantage
- Massachusetts: Blue Cross Blue Shield of Massachusetts, Fallon Health, Magellan Health, Tufts Health Plan, UnitedHealthcare
- Michigan: Blue Cross and Blue Shield of Michigan, Health Alliance Plan (HAP), Humana, Priority Health, UnitedHealthcare
- Minnesota: Blue Cross and Blue Shield of Minnesota, HealthPartners, Humana, Medica, UCare
- Mississippi: Aetna, Cigna, Humana, UnitedHealthcare, WellCare
- Missouri: Aetna, Anthem, Essence, Humana, UnitedHealthcare
- Montana: Aetna, Health Care Service Corporation (HCSC), Humana, PacificSource, UnitedHealthcare
- Nebraska: Aetna, Blue Cross and Blue Shield of Nebraska, Highmark, Humana, UnitedHealthcare
- Nevada: Aetna, Anthem, Hometown Health Plan, Humana, UnitedHealthcare
- New Hampshire: Anthem, Harvard Pilgrim Health Care, Humana, Martin’s Point Health Care, UnitedHealthcare
- New Jersey: Aetna, Anthem, Clover Health, Horizon Blue Cross and Blue Shield of New Jersey, UnitedHealthcare
- New Mexico: Health Care Service Corporation (HCSC), Humana, Molina Healthcare, Presbyterian Health Plan, UnitedHealthcare
- New York: Aetna, EmblemHealth, Excellus BlueCross BlueShield, Healthfirst, UnitedHealthcare
- North Carolina: Aetna, BlueCross BlueShield of North Carolina, Care N’ Care, Humana, UnitedHealthcare
- North Dakota: Aetna, Great Plains Medicare Advantage, Health Care Service Corporation (HCSC), Humana, UnitedHealthcare
- Ohio: Aetna, Anthem, Humana, Mount Carmel Health Plan, UnitedHealthcare
- Oklahoma: Aetna, CommunityCare, GlobalHealth, Humana, UnitedHealthcare
- Oregon: Centene, Kaiser Permanente, Providence Health Plan, Regence BlueCross BlueShield, UnitedHealthcare
- Pennsylvania: Aetna, Geisinger Health Plan, Highmark, Independence Blue Cross, UPMC Health Plan
- Rhode Island: Aetna, Anthem, Blue Cross & Blue Shield of Rhode Island, Magellan Health, UnitedHealthcare
- South Carolina: Aetna, Cigna, Humana, UnitedHealthcare, WellCare
- South Dakota: Aetna, Blue Cross and Blue Shield of Michigan, Great Plains Medicare Advantage, Humana, UnitedHealthcare
- Tennessee: Anthem, BlueCross BlueShield of Tennessee, Cigna, Humana, UnitedHealthcare
- Texas: Aetna, Cigna, Humana, UnitedHealthcare, WellCare
- Utah: Aetna, Molina Healthcare, Regence BlueCross BlueShield, SelectHealth, UnitedHealthcare
- Vermont: Aetna, Anthem, Horizon Blue Cross and Blue Shield of New Jersey, MVP Health Care, UnitedHealthcare
- Virginia: Aetna, Anthem, Humana, Piedmont Community Health Plan, UnitedHealthcare
- Washington: Humana, Kaiser Permanente, Premera BlueCross, Regence BlueShield, UnitedHealthcare
- Washington, D.C.: Aetna, Cigna, Kaiser Permanente, MedStar Medicare Choice (as of Jan. 1, 2019, no longer offers Medicare Advantage), UnitedHealthcare
- West Virginia: Aetna, Highmark, Humana, The Health Plan, UnitedHealthcare
- Wisconsin: Gundersen Health Plan (Quartz), Humana, Network Health, Security Health Plan of Wisconsin, UnitedHealthcare
- Wyoming: Aetna, Humana, UnitedHealthcare
