Contact Us
Have questions? We’re here to help.

Sales Inquiries
To learn more about our products and services, contact your agent, broker or consultant*. Our Blue Cross and Blue Shield of Illinois sales team will work with your representatives to present health insurance solutions to your organization.
Top Contacts for Existing Group Business
The following numbers are for our employer customers. BCBSIL members should call us at the customer service numbers listed on their member ID cards for service.
Group Membership and Eligibility Inquiries
1-800-548-1687 (Small and Mid-Market Groups)
1-800-327-8497 and 1-800-828-3116 (Large Groups)
Small Group Account Management and Group Inquiries
Group Billing and Accounts Receivable
Prescription Inquiries (Prime Therapeutics®)
BlueCare Dental℠
Summary of Benefits and Coverage Request Line
Blue Access for Employers℠ Help Desk
1-888-706-0583
Monday – Friday: 7:00 a.m. – 10:00 p.m. CT
Saturday: 7:00 a.m. – 3:30 p.m. CT
Our Mailing Address
Blue Cross and Blue Shield of Illinois
300 East Randolph Street
Chicago, Illinois 60601-5099
*If you’re an employer with 10 or less employees and don’t have an agent or broker, call 1-833-923-1785 or visit us here for more information.