Guardian: Fax Number for Managed DentalGuard Claims

What is Guardian's fax number for dental claims?

Guardian's confirmed fax, 916-388-3604, appears on its Managed DentalGuard help center page and covers DHMO plan claims that do not require x-ray documentation. Guardian's standard PPO and group dental pages, by contrast, list only mail and the provider portal, no fax number is published for those plans.

Where to fax

• Dental claim without x-rays (Provider or member, Managed DentalGuard (DHMO)): fax 916-388-3604. Source: Guardian DentalGuard FAQ.
• Dental claim requiring x-rays (Provider or member, Managed DentalGuard (DHMO)): Not by fax, follow Guardian's x-ray submission process. Source: Guardian DentalGuard FAQ.
• PPO or group dental claim (Provider or member, PPO / Group): Not published, use mail or the provider portal. Source: Guardian Group Dental Claims.

^{Fax number(s) verified September 17, 2026.}

Which route should I use?

1. Confirm your plan is Managed DentalGuard (DHMO) specifically, this fax doesn't apply to PPO or group dental plans.
2. Check whether the claim needs x-ray documentation, if it does, this fax number isn't the right channel.
3. For any other Guardian dental plan, use mail or the provider portal instead of searching for a fax number.

Documents to include

Use Guardian's Managed DentalGuard claim form, available on the same help center page, and confirm no x-ray documentation is required before faxing.

Several other health and life insurers follow a similar pattern. Our directory also covers Health Net's fax numbers, how to fax Meritain Health, the Transamerica fax page, UMR's claims fax, sending a fax to UnitedHealthcare, and Unum's fax number, each with its own destination and audience notes.