We are located at:
1000 Warrenville Road
Naperville, IL 60563
To reach our main business number, please call (630) 328-4400
For questions regarding career opportunities please call
our Human Resources Department at 630-328-4444
If you are a member of Blue Cross Blue Shield of Illinois, Blue Cross Blue Shield of Texas, Blue Cross Blue Shield of Oklahoma or Blue Cross Blue Shield of New Mexico and have a question about claim or coverage benefits, please refer to the back of your membership card for your customer service telephone number.