DMDC/DEERS Support Office: contact-information updates (primary)
Toll-freeRequested updates to contact information held in DEERS.
TRICARE / DEERS
Find the DMDC/DEERS fax numbers published for contact-information updates, with limits for TRICARE claims and enrolment.
InsuranceUnited StatesLast reviewed
DMDC/DEERS Support Office: contact-information updates (alternate)
Alternate fax for the published DEERS contact-update process.
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.
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.
Open the official source above and check the current instructions. A reviewed source confirms a published number, not live availability. Toll-free numbers can still incur sending-service or international charges.
Confirm delivery and follow up with TRICARE / DEERS
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. These are fax destinations, not voice support lines. Check with TRICARE / DEERS before sending a duplicate.
How to fax TRICARE / DEERS without a fax machine
Prepare a legible PDF, confirm the department and number, and review all pages before authorizing the fax. With DearFax, you can send online or prepare a workflow through ChatGPT, Codex and MCP. Save the transmission result with your records.
Frequently asked questions
TRICARE / DEERS fax questions
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.
This listing confirms contact-information updates, not medical claims. Use the claim instructions for your TRICARE plan and contractor.
Send the contact-update information requested by DEERS. For an insurance claim or enrolment change, obtain the applicable TRICARE form and submission instructions instead.
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.
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.