UMR: Fax Numbers for Prior Authorization and Claims

What is UMR's fax number for prior authorization?

UMR publishes two distinct, purpose-specific fax numbers, both printed directly on its own official cover sheets. Prior authorization and predetermination requests fax to 877-442-1102. Provider claims submission uses a separate number, 877-291-3247. UMR operates as UnitedHealthcare's third-party administrator arm handling self-funded employer plans, but maintains its own claims process distinct from standard UnitedHealthcare plans.

Where to fax

• Prior authorization / predetermination (Provider): fax 877-442-1102. Source: UMR Prior Authorization Fax Sheet.
• Claims submission (Provider): fax 877-291-3247. Source: UMR Claims Fax Sheet.

^{Fax numbers verified September 17, 2026.}

Which route should I use?

1. Identify whether you need coverage confirmed before treatment (prior authorization/predetermination) or you're submitting a completed claim, the numbers are different.
2. Don't assume UMR shares UnitedHealthcare's standard fax numbers, it maintains its own separate process.
3. Use UMR's own cover sheet for each purpose, it lists the exact information the reviewer needs.

Documents to include

Use UMR's official fax cover sheet for the relevant purpose, available on umr.com, and include the member ID and group number.

Several other health and life insurers follow a similar pattern. Our directory also covers UnitedHealthcare's fax numbers, how to fax Unum, the Aetna fax page, MetLife's claims fax, sending a fax to Aflac, and Cigna's fax number, each with its own destination and audience notes.