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Out-of-network TIN verification

If you need to submit an out-of-network medical claim, or you have received a letter requesting information to verify provider billing, you can start the process of registering your tax ID number (TIN) now.

Out-of-network provider

Be sure to have a PDF version of your W-9 tax form and documentation to prove your primary practice location address.

1
Verify
Verify your TIN with UnitedHealthcare
Add TIN
2
Submit
If you haven’t already done so, submit your claim
3
Register
Register for the UnitedHealthcare Provider Portal
Register

Out-of-network facility

If you have not worked with UnitedHealthcare in the past please follow this process:

 

  1. Submit - Submit a paper claim with your W-9 attached using the submission information from the member ID card.
  2. Register - Once the claim is processed, register for the UnitedHealthcare Provider Portal.

UnitedHealthcare Provider Portal registration

Once you have completed steps 1 and 2, register for the portal to:

  • Estimate and manage claims and payments
  • Check prior authorizations
  • Chat with an advocate for help

Frequently asked questions

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To check the status of a TIN you've already registered, you can view your application any time.

You have 2 options for receiving payments from UnitedHealthcare. Both are facilitated by Optum Pay, a full-service payment and remittance solution used by all sizes and types of health care organizations. Learn more

Need help?

Get the steps you need to register your tax ID number (TIN) as an out-of-network provider in our Help Center or guide. 

For additional help, please contact UnitedHealthcare at 844-368-5890, 8 a.m.–5 p.m. CT, Monday–Friday.