TRICARE Military Bases & MTFs: A Guide to Getting Care
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## Quick answer In the TRICARE system, "Bases" (Military Treatment Facilities or MTFs) serve as the primary hub for healthcare delivery, particularly for active duty service members. While TRICARE Prime enrollees are typically assigned to a base for care, those on TRICARE Select usually see civilian providers, though they may still access base pharmacies and specialty care on a space-available basis.
In detail
Military bases house **Military Treatment Facilities (MTFs)**, which range from small clinics to massive regional medical centers like Brooke Army Medical Center. Your proximity to a base determines your plan eligibility and how you receive care.
### The "Catchment Area" and PSAs A Prime Service Area (PSA) is generally the area within a 40-mile radius (or about a one-hour drive) of a military base or MTF. * **TRICARE Prime:** If you live within a PSA, you are generally required to enroll in TRICARE Prime and receive your primary care at the base clinic unless the facility is at capacity. * **Drive Time Standards:** TRICARE standards state you should not have to drive more than 30 minutes for primary care or 60 minutes for specialty care.
### MTF Priority Levels Military bases follow a strict "Priority for Care" hierarchy established by the Department of Defense: 1. **Priority 1:** Active Duty Service Members (ADSMs). 2. **Priority 2:** Family members of ADSMs enrolled in TRICARE Prime. 3. **Priority 3:** Retirees, their families, and survivors enrolled in TRICARE Prime. 4. **Priority 4:** Family members of ADSMs *not* enrolled in TRICARE Prime (TRICARE Select). 5. **Priority 5:** All other eligible beneficiaries (Retirees on TRICARE Select or TRICARE For Life) on a space-available basis.
### Services Available on Base * **Primary & Specialty Care:** Available to Prime enrollees with $0 out-of-pocket costs (2026 rates). * **Pharmacy:** All TRICARE beneficiaries can fill prescriptions at a base pharmacy for **$0 copay**, regardless of their plan (Select, Prime, or TFL). * **Dental:** Generally reserved for Active Duty only. Families typically use the TRICARE Dental Program (United Concordia) at civilian offices.
### Regional Contractors (T-5 Contract) Effective January 1, 2025, and continuing through 2026, the contractors managing the interface between bases and civilian networks are: * **East Region:** Humana Military. * **West Region:** TriWest Healthcare Alliance.
## Who this applies to * **Active Duty Service Members:** Mandatory enrollment at base clinics; 100% of care is managed through the MTF. * **Active Duty Families:** Can choose between Prime (base-centric) or Select (civilian-centric). Living near a base often makes Prime the most cost-effective choice. * **Retirees:** Those under 65 living near a base may enroll in TRICARE Prime or TRICARE Select. Those over 65 (TFL) primarily use Medicare but rely on bases for free pharmacy refills. * **Guard/Reserve:** Generally use civilian providers via TRICARE Reserve Select but may access base facilities during active duty orders or for pharmacy needs.
Common scenarios
**Scenario 1: Active Duty Family at Fort Liberty (Prime)** A spouse and two children live on base. They are enrolled in TRICARE Prime. Their Primary Care Manager (PCM) is located at the Womack Army Medical Center. For all 2026 visits, their **copay is $0**. If the base cannot provide a specialist, TriWest or Humana issues a referral to a civilian doctor.
**Scenario 2: Retiree in San Antonio (Select)** A retired Navy Commander lives near Lackland AFB but prefers his civilian doctor. He uses **TRICARE Select**. For a 2026 doctor's visit, he pays a deductible and a percentage of the allowable charge. However, he drives to the base pharmacy to pick up his maintenance medications, paying **$0** instead of the ~$16–$48 retail pharmacy copay.
**Scenario 3: Space-Available Care** A TRICARE For Life beneficiary living near Nellis AFB needs a shingles vaccine. They call the base clinic. Because they are "Priority 5," they are told there are no appointments this week. They must use a civilian pharmacy and pay the applicable TFL cost-share.
## Related terms * **MTF (Military Treatment Facility):** The formal name for a hospital or clinic located on a military base. * **PCM (Primary Care Manager):** The specific doctor or clinic at a base assigned to manage a Prime member's care. * **PSA (Prime Service Area):** Geographic zones near bases where TRICARE Prime is offered. * **Space-Available Care:** Care provided to non-Prime beneficiaries only when there are open appointments after all Prime members are seen. * **Referral:** An authorization from a base provider to see a specialist, either on-base or in the civilian network.
## Sources * TRICARE.mil MTF Locator: https://www.tricare.mil/mtf * Humana Military (East): https://www.humanamilitary.com/ * TriWest Healthcare Alliance (West): https://www.triwest.com/ * Defense Health Agency: https://health.mil/