Contact Us

HCSC/Illinois
300 E. Randolph St.
Chicago, IL 60601
1-800-654-7385

Montana
3645 Alice St.
Helena, MT 59601
1-406-437-5000

New Mexico
5701 Balloon Fiesta
Pkywy NE
Albuquerque, NM 87113
1-800-835-8699

Oklahoma
1400 S. Boston Ave.
Tulsa, OK 74119
1-918-551-3500

Texas
1001 E. Lookout Dr.
Richardson, TX 75082
1-972-766-6900

General Inquiries
1-312-653-6000

Accounts Payable
ap@bcbsil.com

HR Employee Services
1-866-977-7378 (option 2 for Employment Verification)

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