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UnitedHealthcare Fax Number — Fax Claims and Prior Authorizations

UnitedHealthcare separates its fax intake by function, so claims, prior authorizations, enrollment forms, and provider credentialing each go to their own number rather than a shared line. Appeals and grievances are handled by yet another unit. The correct number usually appears on your member ID materials, the plan's provider portal, or the specific authorization form you are completing, so check there before sending.

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UnitedHealthcare Fax Number

Contact UHC for department-specific fax number

Hours: UnitedHealthcare claims department typically operates Monday-Friday, 8:00 AM - 6:00 PM ET.

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What You Can Fax to UnitedHealthcare

  • Medical claims
  • Prior authorization requests
  • Enrollment and disenrollment forms
  • Provider credentialing documents
  • Appeals and grievances
Tip: Include your policy number and, where a claim already exists, the claim number on every page so UnitedHealthcare can match the fax to the right record. For a prior authorization, add the diagnosis code, procedure code, and the clinical justification supporting the request, since incomplete authorizations are the usual cause of delay. Send FAX Mail returns a delivery confirmation you can keep as proof the submission went through.

Faxing to UnitedHealthcare — FAQ

It depends on what you are sending. Claims, prior authorizations, enrollment, and credentialing each route to different fax lines at UHC. Check your member materials or the specific form you are submitting for the number tied to that purpose.

Yes, and prior authorizations are one of the most common things providers fax to UnitedHealthcare. Include the diagnosis and procedure codes plus the clinical justification, because a request missing that supporting detail tends to stall.

Standard medical claims are generally processed within 30 days. Prior authorizations move faster when they're urgent, often within 24 to 72 hours depending on the clinical situation.

Send it through Send FAX Mail, which logs a delivery confirmation with the date and time of receipt. That record is useful if a claim or authorization deadline is later questioned.

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