* Aetna
* Blue Cross of California
* Blue Shield of California
* Care 1st Health Plan
* CIGNA HealthCare
* Community Health Plan
* Great-West Healthcare-One Health Plan
* Health Net
* Inter Valley Health Plan
* Molina Healthcare
* PacifiCare/Secure Horizons
* SCAN/Smart Care Health Plans
* UHP Healthcare
* United Healthcare
* Universal Care