Sept. 4, 2024
We announced a new mailing address in September 2023 for faster claims processing and responses. Starting Oct. 1, 2024, the U.S. Postal Service will forward mail sent to our previous address to the new address. We expect this to cause delays.
To avoid mail processing delays, update your contact information for us if you haven’t done so and submit paper commercial claims − including CMS-1500 professional and UB-04 institutional paper commercial claims − to this address:
Blue Cross and Blue Shield of Illinois
PO Box 660603
Dallas, TX 75266-0603
Please only submit paper claims if necessary. Electronic claim submission is preferred and is your fastest path to payment. See our Claim Submission page for more information.
Forms with this address are available to download if you haven’t already done so. These include the Claim Review, Corrected Claim, Additional Information and Requests for Recommended Clinical Review forms.
The Dental Claim Form address also was updated: PO Box 660247, Dallas, TX 75266-0247.