UMR: Fax Numbers for Predetermination and Claims

What is UMR's fax number for predetermination?

UMR publishes two distinct, purpose-specific fax numbers, both printed directly on its own official cover sheets. 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

• Predetermination (Provider): fax 877-442-1102. Source: UMR Predetermination Fax Cover Sheet.
• Claims submission (Provider): fax 877-291-3247. Source: UMR Claims Fax Sheet.

^{Fax numbers verified October 20, 2026.}

The 877-442-1102 cover sheet is specifically for predetermination, not a general prior authorization route. For prior authorization requirements, contact the benefits department using the phone number on the member's medical ID card. A predetermination review does not guarantee benefits.

Which route should I use?

1. Identify whether you are requesting a predetermination review before treatment 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 predetermination cover sheet for predetermination, 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.