| Professional/1500 Claims | No Enrollment Required |
| Institutional/UB Claims | No Enrollment Required |
| Eligibility | No Enrollment Required |
| Electronic Remittance (ERA) | Enrollment Required - 25 days |
| Secondary Claims | No Enrollment Required |
| Harmony, a WellCare Company |
| MERIDIAN HEALTH PLAN ILLINOIS COMPLETE |
| MERIDIAN HEALTH PLAN ILLINOIS MEDICAID |
| 4777 |
| 5916 |