December 19, 2023
We announced a new mailing address in September for faster claims processing and responses. If you haven’t yet updated your records, make note of this updated address for paper claims and inquiries for commercial plans:
Blue Cross and Blue Shield of Illinois
P.O. Box 660603
Dallas, TX 75266-0603
Please only submit paper claims if necessary. Electronic claim submission is preferred. See our Claim Submission page for more information.
Mail sent to our previous P.O. Box will be forwarded to the new address during a transition period.