Blue Cross Blue Shield Fax Number — Fax Claims and Prior Authorizations
Blue Cross Blue Shield isn't a single company but a federation of independent local plans, so the fax line you need depends on which BCBS plan holds the policy. Claims, prior authorization requests, enrollment changes, and appeals each route to their own department, and those numbers are usually printed in your policy materials. Getting the right department on the first try is the difference between a clean submission and one that sits unprocessed.
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Blue Cross Blue Shield Fax Number
Contact your local BCBS plan for fax number
Hours: Blue Cross Blue Shield claims department typically operates Monday-Friday, 8:00 AM - 6:00 PM ET.
Send a Fax NowWhat You Can Fax to Blue Cross Blue Shield
- Medical claims
- Prior authorization requests
- Enrollment and disenrollment forms
- Provider credentialing documents
- Appeals and grievances
Tip: Add your policy number, and the claim number when there is one, to every page so the document attaches to your record. For prior authorizations, include the diagnosis code, procedure code, and the clinical justification, since a request missing those details often gets returned. A delivery confirmation from Send FAX Mail gives you proof of submission if a claim or authorization is later questioned.
Faxing to Blue Cross Blue Shield — FAQ
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