| Alabama Blue | Alabama Medicare | AllState |
| AmeriHealth DE non HMO | AmeriHealth NJ & DE HMO | AmeriHealth NJ non HMO |
| Amerihealth Administrators (AHA) | Arizona Medicare | Connecticut Medicare |
| DMERC Region B | Delaware Medicare | District of Columbia Medicare |
| Florida Blue | Florida Medicare | GHI Medicare (New York Queens) |
| Georgia Medicaid | Health Partners of Minnesota | Highmark - IBC/PerCh |
| Highmark - Pennsylvania Blue | Illinois Blue | Illinois Medicare |
| Indiana Blue | Indiana Medicaid | Indiana Medicare |
| Iowa Medicaid | Iowa Medicare | Kansas City Medicare |
| Kentucky Blue | Kentucky Medicare | Keystone Central |
| Keystone East | Lousiana Medicare | Maine Medicare |
| Maryland Medicare | Massachusetts Blue | Massachusetts Medicare |
| Michigan Blue | Michigan Medicare | Minnesota Medicare |
| Missouri Medicare | Nevada Medicare | New Hampshire Medicare |
| New Jersey Medicare | New Mexico Medicare | New York Medicare |
| North Carolina Blue | North Carolina Medicaid | North Carolina Medicare |
| North Dakota Medicare | Northern California Medicare | Ohio Blue |
| Ohio Medicaid | Ohio Medicare | Oklahoma Medicare |
| Oregon Medicare | Pennsylvania Medicaid | Pennsylvania Medicare |
| Regence Blue Shield | Regence Blue Shield of Oregon | South Carolina Medicare |
| Southern California Medicare | Tennessee Blue | Tennessee Medicare |
| Texas Medicare | Vermont Medicare | Virginia Blue Shield |
| Virginia Medicare | Washington Medicaid | Washington Medicare |
| Wisconsin Blue | Wisconsin Medicare |
