All eligible TRICARE beneficiaries will have a uniformed services ID card (USID) that they'll show you when they visit your office. That card has a DOD Identification Number and a unique DOD Benefits Number (DBN). You'll use the DBN to file any claims.
The DOD upgraded the USID cards to a newer, more secure design.
DOD/Uniformed Services Sponsor Identification and Privilege Card
DOD/Uniformed Services Dependent Identification and Privilege Card
Armed Forces of the United States Geneva Conventions Identification Card
