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Contact Us

Individual & Family (Under 65):

Sales Questions: 1-866-514-8044
Monday to Friday - 8:00 am to 8:00 pm CST
Saturday - 8:00 am to 6:00 pm CST
Sunday - 10:00 am to 6:00 pm CST

Customer Service: 1-800-538-8833


Over 65:
Sales Questions: 1-800-646-3000
Customer Service: 1-800-624-1723


Medicare Part D:
1-877-213-1821


Group Members:
PPO/POS: Call the toll free number on the back of your ID card or call (800) 541-2768

HMO Hotline:(800) 892-2803

Blue Cross and Blue Shield of Illinois
300 East Randolph Street
Chicago, Illinois 60601-5099