Greater Chicago region:
Cook County
Aetna Better Health
Blue Cross Blue Shield of Illinois
Cigna Health Spring of Illinois
Community Care Alliance of Illinois (CCAI)
Humana Health Plan
IlliniCare
Meridian
* DuPage, Kane, Kankakee, Lake, Will counties
Aetna Better Health
IlliniCare
*In Summer 2014 all of the plans listed in Cook will begin participating in the entire Greater Chicago region.
Rockford region:
Boone, McHenry, Winnebago counties
Central IL region:
Knox, Peoria, Stark, Tazewell counties
McLean, Logan, DeWitt, Sangamon, Macon, Christian, Menard, Piatt, Champaign, Ford, Vermillion counties
Quad Cities region:
Rock Island, Mercer counties
IlliniCare
Precedence (CCE)
Metro East region:
Madison, Clinton, St Clair counties