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TRICARE Bases and Military Treatment Facilities Guide

Learn how military bases (MTFs) impact TRICARE eligibility, costs, and care priority for active duty and retired members in 2026.

TRICARE Bases and Military Treatment Facilities Guide

*Disclaimer: TRICARE.com is an independent reference site and is not affiliated with the Department of Defense or the official TRICARE program. For official policy and the most current data, visit TRICARE.mil.*

## 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 your proximity to a base determines your plan eligibility—such as whether you must enroll in TRICARE Prime or can use TRICARE Select—the care provided on-base is typically the most cost-effective option for all military beneficiaries.

## In detail Military installations house Military Treatment Facilities (MTFs) which range from small troop clinics to massive medical centers like Walter Reed. Your relationship with these bases is defined by "Prime Service Areas" (PSAs), which are generally geographic areas within a 40-mile radius (or one-hour drive) of a base.

### The Priority System (Access to Care) Because military bases have limited capacity, TRICARE enforces a strict "level of priority" for who gets seen first: 1. **Priority 1:** Active Duty Service Members (ADSMs). 2. **Priority 2:** Active Duty Family Members (ADFMs) enrolled in TRICARE Prime. 3. **Priority 3:** Retirees, their family members, and survivors enrolled in TRICARE Prime. 4. **Priority 4:** All other eligible beneficiaries (TRICARE Select, TRICARE For Life) on a space-available basis.

### Regional Contractors and Base Operations As of 2026, healthcare delivery around bases is managed by two regional contractors who coordinate care between military bases and civilian "network" providers: * **East Region:** Managed by **Humana Military**. * **West Region:** Managed by **TriWest Healthcare Alliance** (under the T-5 contract).

### Costs at the Base For almost all beneficiaries, care received directly at a military base clinic or hospital is **$0 out-of-pocket**, including pharmacy scripts. * **Active Duty:** Always $0 at the base. * **Retirees:** While they may have copays at civilian doctors, seeing a provider at the base (if space is available) usually results in a $0 copay for the visit. * **Pharmacy:** Filling a prescription at a base pharmacy is $0 for all beneficiaries in 2026, compared to roughly $16–$43 for a 30-day supply at a civilian retail pharmacy.

### TRICARE Prime vs. Select based on Geography If you live within a Prime Service Area (near a base), you are generally encouraged to enroll in TRICARE Prime. If you live outside a PSA, you may be required to use TRICARE Select or TRICARE Prime Remote, as the base cannot practically serve as your Primary Care Manager (PCM).

## Who this applies to * **Active Duty Service Members:** Required to receive care at the base MTF unless referred out. * **Active Duty Family Members:** Impacted by whether they live in a Prime Service Area (near a base) which dictates their "Prime" vs "Select" options. * **Retirees under 65:** Impacted by base proximity for enrollment choices and "space-available" care access. * **TRICARE For Life (TFL) Users:** While they use Medicare as primary, they can still use base pharmacies for $0 copays.

Common scenarios

**Scenario 1: Living on-base (Prime)** Sgt. Miller and his family live at Fort Liberty (East Region). Because they are on-base, they are in a Prime Service Area. Sgt. Miller’s PCM is at the Womack Army Medical Center. His wife and children also have PCMs at the base. Their 2026 out-of-pocket cost for all primary care and prescriptions at the base is **$0**.

**Scenario 2: Retiree near a base (Space-Available)** A retired Navy Commander lives 10 miles from NAS Jacksonville. He is enrolled in TRICARE Select. He sees a civilian specialist for a $38 copay (2026 Group A rate), but he takes his paper prescription to the NAS Jacksonville base pharmacy. Because it is a military base, his medication cost is **$0**.

**Scenario 3: Living far from a base (Prime Remote)** An Air Force recruiter lives 90 miles from the nearest installation. Because he is not near a "base," he is enrolled in TRICARE Prime Remote. He sees a local civilian doctor as his PCM. Because the military requires him to be there, his out-of-pocket costs remain **$0**, even though he never sets foot on a military base.

## Related terms * **MTF (Military Treatment Facility):** A hospital or clinic located on a military base. * **PSA (Prime Service Area):** The geographic area (usually 40 miles) surrounding a base where TRICARE Prime is offered. * **PCM (Primary Care Manager):** The specific doctor, often located at the base, who coordinates all your care. * **T-5 Contract:** The current 2026 regional contract framework involving Humana Military and TriWest. * **Space-Available Care:** Medical services offered to non-Prime beneficiaries only when the base clinic has extra appointment slots.

## Sources * **TRICARE.mil - Types of Military Treatment Facilities:** https://www.tricare.mil/mtf * **Humana Military (East Contractor):** https://www.humanamilitary.com/ * **TriWest Healthcare Alliance (West Contractor):** https://www.triwest.com/ * **Defense Health Agency (DHA):** https://health.mil/