Defense Enrollment Eligibility Reporting System
Eligibility for TRICARE is determined by the information found in the Defense Enrollment Eligibility Reporting System (DEERS). You may verify or update DEERS in one of the following ways:
- Visit a local ID card office to add/remove family members. Call first to verify business hours or to set up an appointment. Or, set up an appointment online.
- Update update your addresses, e-mail address and phone numbers online with milConnect.
- Call 1-800-538-9552 to update your addresses, e-mail address and phone numbers. (TTY/TDD: 1-866-363-2883)
- Fax address, e-mail address or phone number changes to 1-831-655-8317.
- Mail changes and supporting documentation to:
Defense Manpower Data Center Support Office
400 Gigling Road
Seaside, CA 93955-6771
>>Learn More About Updating DEERS