For more information, call: 877-CENTEGRA

Expressing a Concern

We encourage you to let us know how we can serve you better.  Most of your concerns can be handled by talking with your physician or caregivers. If you would like additional assistance, we welcome calls to the Centegra Assistance Line at (815) 759-4142.   If you would prefer to express a concern in writing, please direct it to:

Senior Vice President of Administrative Affairs
Centegra Health System
385 Millennium Drive, Crystal Lake, IL 60012

While most of your concerns can be resolved directly with Centegra, you also have the right to notify others for assistance.

You may contact The Joint Commission Office of Quality Monitoring by either calling (800) 994-6610 or e-mailing to:

You may also contact the Illinois Department of Public Health by either calling (800) 252-4343 or writing to:

Illinois Department of Public Health
525 W. Jefferson Street, Springfield, IL 62761-0001

Additionally, Medicare recipients may contact the Illinois Foundation for Quality Healthcare by calling (800) 647-8089 or writing to:

Attn: Medicare Beneficiary Protection Team
1776 West Lakes Parkway, West Des Moines, IA 50266-7771