What is a TRICARE Service Center? | Definition & Guide
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## Definition A TRICARE Service Center (TSC) was a physical walk-in office located at or near military installations where beneficiaries could receive face-to-face assistance with enrollment, claims, and benefits counseling.
## What it means in practice In the modern military health system, physical TRICARE Service Centers have largely been phased out within the United States. In 2014, the Department of Defense closed 189 walk-in TSCs in the U.S. to reduce administrative costs, shifting those services to online portals and telephone customer service. Today, most beneficiaries manage their healthcare through the regional contractors: **Humana Military** in the East Region and **TriWest Healthcare Alliance** in the West Region.
While domestic walk-in centers are a thing of the past, their functions remain critical. For a beneficiary in 2026, the "service center" experience is now virtual. You contact your regional contractor to update enrollment (such as switching between TRICARE Prime and TRICARE Select), resolve a billing error for a 2026 specialist visit, or find a network provider. For example, if you are a Retiree Group A member on TRICARE Select, you might contact the contractor to confirm your 2026 annual deductible (which varies by plan year) before seeking care from a civilian provider.
Overseas, the "service center" concept still maintains a physical presence in some locations. Beneficiaries stationed in Europe or the Pacific may find TRICARE Service Centers at major military medical facilities, managed by **International SOS**. These overseas TSCs provide vital assistance with local language barriers, overseas claims processing, and coordination of care within host-nation premium networks.
For those in the United States needing "in-person" help, the military still provides **Health Benefits Advisers (HBAs)** or Beneficiary Counseling and Assistance Coordinators (BCACs) located at Military Treatment Facilities (MTFs). While not technically "TSCs," these personnel perform many of the same functions, helping families navigate complex referral issues or debt collection assistance.
## Related terms * **Regional Contractor:** A private insurance company (Humana Military or TriWest) that manages TRICARE benefits and provider networks for a specific geographic area. * **BCAC (Beneficiary Counseling and Assistance Coordinator):** A person at a military hospital or clinic who helps beneficiaries understand their benefits and resolve healthcare issues. * **DEERS (Defense Enrollment Eligibility Reporting System):** The global database that tracks the eligibility of service members and their families for TRICARE. * **T-5 Contract:** The fifth generation of TRICARE managed care contracts, which transitioned the West Region to TriWest Healthcare Alliance on January 1, 2025. * **International SOS:** The contractor responsible for administering TRICARE benefits to beneficiaries living outside of the United States.
## Sources * TRICARE.mil: Customer Service - [https://www.tricare.mil/ContactUs/CallUs](https://www.tricare.mil/ContactUs/CallUs) * Defense Health Agency: BCAC Directory - [https://www.tricare.mil/bcac](https://www.tricare.mil/bcac) * Humana Military (East Region) - [https://www.humanamilitary.com/](https://www.humanamilitary.com/) * TriWest Healthcare Alliance (West Region) - [https://www.triwest.com/](https://www.triwest.com/)