Illinois
Blue Cross and Blue Shield of Illinois
General Inquiries
1-312-653-6000
Blue Cross and Blue Shield of Illinois
300 E. Randolph Street
Chicago, IL 60601-5099
300 E. Randolph Street
Chicago, IL 60601-5099
FEP Service
4002 Loop 322
Abilene, TX 79602
4002 Loop 322
Abilene, TX 79602
Claims/Customer Service
Blue Cross and Blue Shield of Illinois
P.O. Box 660603
Dallas, TX 75266-0603
P.O. Box 660603
Dallas, TX 75266-0603
Customer Service
1-800-972-8382 FEHB
1-877-707-2484 PSHB
Precertification
Mental Health/Substance Use Disorder Precertification
Case Management
Disease/Care Management Programs
Asthma
Chronic Obstructive Pulmonary Disease
Congestive Heart Failure
Coronary Artery Disease
Diabetes
Congestive Heart Failure
Coronary Artery Disease
Diabetes
Health Management & Support Programs
If you are deaf, hard of hearing, or have a speech disability, dial 711 for TTY relay services. For other language assistance or translation services, please call the customer service number for your local Blue Cross and Blue Shield company.