Medicare Service Area

The Community Care Alliance of Illinois, NFP proudly provides Medicare services to various counties within the State of Illinois. 

Refer to the list below to find out what services are available for which counties.

Medicare Service Area

Community Care Alliance of Illinois, NFP (CCAI, NFP) coverage area by counties

Boone County
DuPage County
McHenry County
Will County
Cook County 
Kane County 
Ogle County
Winnebago County





Find a Provider

To find a provider that is in close proximity to you, please use the following provider directory. Click here.






Community Care Alliance of Illinois, NFP (CCAI, NFP) is a HMO plan sponsor contracted with Medicare and the Illinois Medicaid program. Enrollment in a CCAI, NFP plan depends on contract renewal. This information is available for free in other languages. Please call our customer service number at 1-855-275-2781 (TTY 711).  Hours are between 8:00am and 8:00 pm Monday through Friday (7 days a week from October 1 through February 14).  Answering Service available weekends and after hours.


Service Area

CCAI, NFP proudly serves the following Illinois counties: Boone, Cook, DuPage, Kane, McHenry, Ogle, Will and Winnebago.


Claims Information

Claims Department

Please submit all claims to:

Community Care Alliance of Illinois
CCAI, NFP PO Box 981731
El Paso, TX  79998-1731
(Change Healthcare Payer ID 85468)

Member Services Information

Member Services

For member services inquiries, please call:



Community Care Alliance of Illinois, NFP
322 S. Green Street, Suite 400
Chicago IL 60607

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