TRICARE claims and appeals
TRICARE / TRICARE West Region Claim Appeals
Submit a TRICARE West claim appeal
Use the number only for the documented purpose and routing rule below.
This listing does not guarantee delivery, processing, acceptance, or deadline treatment. Recheck the official instructions before sending.
Route decision
Is this the right fax route?
Match all three checks before using the number.
- 01 Purpose
- Submit a TRICARE West claim appeal
- 02 Region or eligibility
- Beneficiaries or non-network providers appealing a TRICARE West decision to deny or reduce payment on a processed claim.
- 03 Required form or document
- A signed claim-appeal letter, a copy of the explanation of benefits or other decision, and supporting documents allowed by the current instructions.
Submission notes
What to put on the route.
Routing instructions
Identify the beneficiary and disputed claim, explain the requested correction, and follow the filing deadline and document instructions in the decision notice.
Official source and check date
Recheck the route before sending.
- Recipient
- TRICARE
- Fax
- 866-852-1994
- Last checked
As of August 24, 2026, the linked TRICARE source listed this number for the purpose shown. Just One Fax is not affiliated with or endorsed by TRICARE.
Before transmission
Questions to answer before sending.
What is the TRICARE fax number for this purpose?
866-852-1994 is the fax number published in the cited official source for this specific purpose: Submit a TRICARE West claim appeal. Recheck the source immediately before sending.
How do I know whether this is the right regional route?
Beneficiaries or non-network providers appealing a TRICARE West decision to deny or reduce payment on a processed claim.
What should I send to this fax number?
A signed claim-appeal letter, a copy of the explanation of benefits or other decision, and supporting documents allowed by the current instructions. Identify the beneficiary and disputed claim, explain the requested correction, and follow the filing deadline and document instructions in the decision notice.
Does this listing guarantee acceptance?
No. The linked source listed this route on August 24, 2026, but only the recipient can determine delivery, eligibility, processing, acceptance, or deadline treatment.
Number prefilled, decision still yours
Prepare one careful fax.
Open the send flow with 866-852-1994 prefilled. Compare it with the official source again before checkout.
Send to 866-852-1994