TRICARE fax numbers depend on your region. In TRICARE East (Humana Military), beneficiary claims fax to 877-489-0007 and appeals to 877-850-1046. In TRICARE West (TriWest Healthcare Alliance), claims fax to 877-989-0070 and claim appeals to 866-852-1994. Referrals and authorizations are normally sent by your provider, and both contractors prefer online submission. Write the beneficiary's name and the sponsor's name and ID on every page.

This guide lists the TRICARE fax numbers we verified on TRICARE.mil and the contractors' own sites, explains which document goes where, and covers the mistakes that slow down claims and appeals.

  • Verified numbers for East and West claims, appeals, and referrals
  • Your letter or EOB comes first for appeals
  • Deadlines: one year for claims, 90 days for most appeals

Table of Contents

Which region are you in?

TRICARE in the United States is split into two regions, each run by a contractor that handles claims, appeals, and referrals:

  • TRICARE East, administered by Humana Military
  • TRICARE West, administered by TriWest Healthcare Alliance

Your region is set by where you live, not where your sponsor is stationed. If you are not sure, your enrollment card, your TRICARE account, or your Explanation of Benefits will name the contractor. Overseas coverage and TRICARE For Life are handled by different contractors, and their numbers are not on this page.

Verified TRICARE fax numbers

Verified November 2026.

TRICARE East (Humana Military)

What you are sending Fax number Source
Beneficiary claim (DD 2642) and supporting documents 877-489-0007 Humana Military beneficiary claims FAQ (PDF)
Claim appeals 877-850-1046 TRICARE.mil: East appeals and grievances
Other health insurance (OHI) updates 877-489-0038 Humana Military beneficiary claims FAQ (PDF)
Third party liability (TPL) form 877-489-0041 Humana Military beneficiary claims FAQ (PDF)
Privacy Office release-of-information forms 877-298-3407 Humana Military beneficiary claims FAQ (PDF)
Referrals and authorizations (providers) 877-548-1547 Humana Military provider referral FAQ (PDF)

East mailing addresses: claims to TRICARE East Region: New Claims, P.O. Box 202146, Florence, SC 29502-2146; appeals to TRICARE East Appeals, P.O. Box 740044, Louisville, KY 40201-7444.

TRICARE West (TriWest Healthcare Alliance)

What you are sending Fax number Source
Beneficiary claim (DD 2642) 877-989-0070 TRICARE.mil: West claims
Claim appeals 866-852-1994 TRICARE.mil: West claim appeals
Referral or authorization appeals 866-852-1919 TRICARE.mil: West authorization appeals
Referral/authorization form (providers; fax use should be limited) 866-852-1893 TriWest referral/authorization form (PDF)
Newborn and NICU face sheets (providers) 866-852-1885 TriWest provider forms
Provider correspondence 866-852-1969 TriWest provider inquiries guide (PDF)

West mailing addresses: claims to TRICARE West Region Claims, P.O. Box 202160, Florence, SC 29502-2160; claim appeals to TRICARE West Appeals, P.O. Box 2130, Virginia Beach, VA 23450.

The number on your letter wins

TRICARE appeals start with a document: a denial letter or an Explanation of Benefits. That document explains how to appeal that specific decision, and if it names a fax number, it overrides this page. Contractors change, and the letter reflects who is handling your claim today.

The same applies to requests for more information. If TRICARE sends a claim back asking for something, reply the way the notice tells you to, and include the claim details it references.

How to fax a TRICARE claim or appeal

  1. Confirm your region from your TRICARE account or EOB.
  2. Use the DD 2642 for a claim you are filing yourself. Attach itemized bills showing the provider's name, address, and NPI if available, the diagnosis, the procedures, and proof of payment if you already paid.
  3. For an appeal, write a short letter saying what you want reviewed and why, and attach the denial letter or EOB and any new supporting records.
  4. Label every page with the beneficiary's name and the sponsor's name and ID. Humana Military asks for this on all attachments so they can be matched to the claim.
  5. Sign and date. The beneficiary's or authorized person's signature is required for a claim to be processed.
  6. Fax to your region's number and keep the confirmation with a copy of everything.

If you do not have a fax machine, you can send a fax online for $2.99 with no subscription and no account. It is handy for a family that files a claim once in a while, including from a base apartment without a landline.

Why faxed claims get returned

  • Missing sponsor ID on attachments. Bills and receipts without the sponsor's name and ID can be separated from the claim form.
  • Bills that are not itemized. A receipt showing only a total does not give the diagnosis and procedure detail TRICARE needs.
  • Unsigned or undated forms. Humana Military asks that all signatures be dated so claims can be processed in time.
  • Wrong region. An East claim faxed to a West line does not reach the right contractor promptly.
  • Missed deadlines. Claims must be filed within one year of the service, and most appeals within 90 days. Expedited appeals have a much shorter window: TRICARE.mil says three days of getting the denial letter.
  • Missing therapy paperwork. Physical, occupational, and speech therapy claims need a physician's order and treatment plan on file, plus progress notes every three months.

If a transmission keeps failing, this guide to fax errors explains what each failure means.

Fax your TRICARE claim now →

Frequently asked questions

What is the TRICARE fax number for claims?

It depends on your region. TRICARE East beneficiary claims fax to 877-489-0007, according to Humana Military. TRICARE West claims fax to 877-989-0070, according to TRICARE.mil. Both use the DD 2642 claim form.

What is the TRICARE East appeals fax number?

TRICARE.mil lists 877-850-1046 for TRICARE East appeals, with online submission through Humana Military as the preferred method. Regular appeals are due within 90 days of the denial date.

What is the TRICARE West appeals fax number?

For claim appeals, fax 866-852-1994 within 90 days of the date on your Explanation of Benefits. For appeals of a denied referral or authorization, TRICARE.mil lists 866-852-1919.

What is the TRICARE referral fax number?

Referrals and authorizations are usually sent by your provider. Humana Military lists 877-548-1547 for TRICARE East. TriWest's West Region referral form says to return it to 866-852-1893, though both contractors prefer online submission.

How long do I have to file a TRICARE claim?

Humana Military's beneficiary FAQ says all claims must be filed within one year after the service took place. If a claim is returned for more information, the resubmission must arrive within the filing deadline or within 90 days of the notice.

Sources