- Aetna – most plans
- ASR – Physicians Care
- Automobile insurance carriers
- Blue Cross Blue Shield – most plans
- Blue Care Network
- Cofinity
- Grand Valley Health Plan
- Medicaid
- Medicare
- Medicare Priority Health
- Medicare Blue Care Network
- Medicare Plus Blue
- Priority Health
- Priority Health Medicaid
- Tricare/Champus
- United Health Care
- Workman’s Comp