 Aetna |
Great West |
| American International Group (AIG) |
Guardian |
| Americar |
Horizon |
| Anthem Health |
Medicare |
| Beech Street Corp PPO (not with Multiplan) |
Multiplan |
| Blue Choice |
New Premier Plus |
| Blue Cross / Blue Shield |
One Health Plan |
| Healthchoice |
Oxford |
| CCN |
Performax |
| Choice One |
PHCS |
| Chubb-Healthsource |
SAG |
| Cigna HMO / PPO |
Select Pro |
| Emblem Health (GHI * and HIP) |
Union 32 BJ |
| Empire Plan |
Union 1199 |
| First Health |
United Healthcare |