| Professional/1500 Claims | No Enrollment Required |
| Institutional/UB Claims | No Enrollment Required |
| Eligibility | No Enrollment Required |
| Electronic Remittance (ERA) | Enrollment Required - 31 days |
| Secondary Claims | No Enrollment Required |
| United Healthcare Ovations Insurance Solutions |
| AARP Hospital Idemnity Plans and AARP Medicare Supplement |
| AARP UnitedHealthcare Insurance Co |
| AARP Hospital Indemnity Plans insured by UnitedHealthcare Insurance Co |
| AARP SUPPLEMENTAL HEALTH PLANS FROM UNITEDHEALTHCARE |
| AARP UHC SENIOR CARE/MEDICARE C |
| 5271 |
| 8940 |