| Admar/Principal PPO |
| Aetna |
| Ancillary Care Services |
| Auto Mechanics Union #701 |
| BCE Emergis |
| Beech Street |
| Blue Choice |
| Blue Cross Blue Shield HMOI |
| Blue Cross Blue Shield PPO |
| CCN Network PPO |
| Cigna |
| Cofinity |
| Concentra/RCI Medcost |
| Concert Health Plan |
| CorVel (CorCare) Nat. PPO |
| Coventry Healthcare Plan |
| Department of Aging |
| DuPage Medical Group (DMG) |
| First Health/Affordable Health Plan |
| Galaxy Health Network |
| Great West |
| Health Marketing |
| Health Network/Wellmark PPO |
| Health Risk Management Nat. PPO |
| Health Star PPO/EPO |
| HFN Nat. PPO |
| Hines & Associates Case Management |
| Humana HMO/PPO |
| Independent Physicians @ Mercy |
| Med Network |
| Medical Care Group |
| Medicare Part B |
| Multi Plan Nat. PPO |
| Northwest Primary Care Alliance |
| Northwest Suburban IPA |
| NPPN (National Preferred Providers Network |
| Oak West Primary Physicians |
| One Health Plan HMO/POS |
| PHCS (Private Health Care System National PPO) |
| Physician Care Network |
| Physician Care Network |
| PPOM |
| Preferred Plan PPO |
| Primary Care of Joliet |
| Principal PPO |
| Resurrection Health Care Preferred |
| Resurrection Physician Provider Group |
| Tri Care |
| Trustmark |
| Unicare HMO/PPO |
| United Healthcare HMO/PPO |
| Wellmark Health Network PPO |
| West Suburban Health Providers |