# TRICARE / DEERS fax numbers for DEERS contact updates

Find the DMDC/DEERS fax numbers published for contact-information updates, with limits for TRICARE claims and enrolment.

Country: United States
Category: Insurance
Last reviewed: 2026-10-04 (published sources, not a test transmission)

## Which TRICARE / DEERS fax number should I use?

These are DEERS Support Office contacts for updating contact information. They are not a universal TRICARE claims, referral or enrolment destination. For those tasks, use the instructions for your plan and regional contractor.

## DMDC/DEERS Support Office: contact-information updates (primary)

Fax: +1 800 336 4416
E.164: +18003364416

Toll-free number; service and international charges may still apply.

Requested updates to contact information held in DEERS.

Use only when: Match your plan, state and request type to this department before sending. The current claim or appeal form takes precedence.

[TRICARE / DEERS — form and contact instructions](https://www.tricare.mil/DEERS) — reviewed 2026-10-04

## DMDC/DEERS Support Office: contact-information updates (alternate)

Fax: +1 502 335 9980
E.164: +15023359980

Alternate fax for the published DEERS contact-update process.

Use only when: Match your plan, state and request type to this department before sending. The current claim or appeal form takes precedence.

[TRICARE / DEERS — form and contact instructions](https://www.tricare.mil/DEERS) — reviewed 2026-10-04

## What to include in your fax to TRICARE / DEERS

Send the contact-update information requested by DEERS. For an insurance claim or enrolment change, obtain the applicable TRICARE form and submission instructions instead.

## Check the destination and prepare your cover page

Name the receiving claims or appeals team and the request type. Include the policy, member or claim reference where the form asks for it, a callback number and the total page count. Put medical evidence in the required attachments rather than the cover summary.

Check the official source and recipient instructions before sending. A reviewed source confirms a published number, not live availability.

## Confirm delivery and follow up with TRICARE / DEERS

These are fax destinations, not voice support lines. Keep the transmission result and a copy of the documents. Confirm with the receiving department that the packet is complete and can be processed; a delivery receipt does not establish acceptance or a decision. Check with that department before sending a duplicate.

## How to fax TRICARE / DEERS without a fax machine

Prepare a legible PDF, verify the department and number, review the pages and authorize sending. DearFax supports [online sending](https://dearfax.com/send-fax-online) and workflows with [ChatGPT](https://dearfax.com/chatgpt) or [Codex](https://dearfax.com/codex) through [MCP](https://dearfax.com/mcp). Retain the transmission result.

## Frequently asked questions

### What TRICARE / DEERS fax number should I use?

DMDC/DEERS Support Office: contact-information updates (primary): +1 800 336 4416. DMDC/DEERS Support Office: contact-information updates (alternate): +1 502 335 9980. These are DEERS Support Office contacts for updating contact information. They are not a universal TRICARE claims, referral or enrolment destination. For those tasks, use the instructions for your plan and regional contractor.

### Can I fax a TRICARE medical claim to the DEERS number?

This listing confirms contact-information updates, not medical claims. Use the claim instructions for your TRICARE plan and contractor.

### What documents can I fax to TRICARE / DEERS?

Send the contact-update information requested by DEERS. For an insurance claim or enrolment change, obtain the applicable TRICARE form and submission instructions instead.

### What should I put on a fax cover page for TRICARE / DEERS?

Name the receiving claims or appeals team and the request type. Include the policy, member or claim reference where the form asks for it, a callback number and the total page count. Put medical evidence in the required attachments rather than the cover summary.

### How can I fax TRICARE / DEERS without a fax machine?

Prepare your documents as a legible PDF and confirm the recipient’s submission requirements. You can use DearFax in your browser or prepare the fax with ChatGPT or Codex through MCP. Review the number and pages before authorizing the send, then keep the transmission result. Delivery does not confirm that the recipient accepted or processed your request.

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