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TRICARE and Military Bases: Costs, PSAs, and MTFs

Understand how military base proximity determines your TRICARE plan eligibility, costs, and access to Military Medical Treatment Facilities (MTFs) in 2026.

TRICARE and Military Bases: Costs, PSAs, and MTFs

*Note: TRICARE.com is an independent reference site and is not the official TRICARE program. For official policy and the most up-to-date data, visit TRICARE.mil.*

## Quick answer Military bases serve as the primary hub for the TRICARE Prime benefit through Military Medical Treatment Facilities (MTFs or "Base Hospitals"). Living near a base generally gives you access to low-cost or zero-cost care at the MTF, while living far from a base often requires transitioning to TRICARE Select or using the TRICARE Prime Remote program.

## In detail Military installations are the geographic anchors of the TRICARE system. Your proximity to a base determines which TRICARE plans you are eligible for and where you will receive your primary medical care.

### Prime Service Areas (PSAs) A Prime Service Area is generally a geographic zone within a 40-mile radius (or approximately a 30-minute drive) of a military base or MTF. * **If you live in a PSA:** You are usually required to enroll in **TRICARE Prime** if you are Active Duty. Family members can choose Prime and will likely be assigned a Primary Care Manager (PCM) at the base clinic. * **If you live outside a PSA:** Active Duty members must use **TRICARE Prime Remote**. Family members and retirees can choose **TRICARE Select**, which allows them to see any TRICARE-authorized civilian provider but involves higher out-of-pocket costs.

### Military Medical Treatment Facilities (MTFs) MTFs are the clinics and hospitals located on-base. They are managed by the Defense Health Agency (DHA). * **Access Priority:** Active Duty Service Members (ADSMs) have first priority, followed by Active Duty Family Members (ADFMs) enrolled in Prime. Retirees and their families are seen on a "space-available" basis, which is increasingly rare at busy installations. * **Costs:** For 2026, care received at an MTF for Prime enrollees remains at a **$0 copayment** for almost all services.

### Regional Management The base you are assigned to determines which regional contractor manages your claims and authorizations: * **TRICARE East:** Managed by **Humana Military**. Includes bases like Fort Liberty, NC and Norfolk Naval Station, VA. * **TRICARE West:** Managed by **TriWest Healthcare Alliance** (as of the T-5 contract transition). Includes bases like Camp Pendleton, CA and Joint Base Lewis-McChord, WA.

### Base Transitions and Moving When you move from one base to another (PCS), your TRICARE coverage does not automatically move with you. You must update your address in the Defense Enrollment Eligibility Reporting System (DEERS) and, if moving between regions (e.g., East to West), you must contact the new regional contractor to transfer your enrollment.

## Who this applies to * **Active Duty Service Members:** Mandatory enrollment based on their assigned duty station/base. * **Active Duty Family Members:** Proximity to a base determines if they use the MTF or civilian providers via Prime or Select. * **Retirees:** Those living near a base may attempt to seek care at the MTF, but may be "pushed" to civilian networks if the base is at capacity. * **National Guard/Reserve:** Eligible for TRICARE Reserve Select, which is generally used with civilian providers regardless of base proximity.

Common scenarios

**Scenario 1: PCS to a Major Installation** Sgt. Smith moves to Fort Cavazos, TX (TRICARE West). Because they live on-base, the family enrolls in TRICARE Prime. For a specialist visit in 2026, the family pays **$0** because they were referred by their base PCM to a clinic within the MTF.

**Scenario 2: Retired and Living Near a Base** A retired Chief Petty Officer lives 5 miles from NAS Jacksonville. He is enrolled in TRICARE Select (Group A). He tries to get an appointment at the base for a non-urgent issue but is told there is no space-available. He goes to a civilian network doctor instead. In 2026, his copay for that primary care visit is **$38** (based on estimated 2026 Select rates).

**Scenario 3: Recruiting Duty (Remote)** An Army Recruiter is assigned to a station 90 miles from the nearest base. Because he is more than 50 miles/one hour away, he enrolls in **TRICARE Prime Remote**. He sees a local civilian doctor for his flight physical, and TRICARE covers the cost at **$0** because no base facility was available.

## Related terms * **MTF (Military Medical Treatment Facility):** A clinic or hospital located on a military base. * **PSA (Prime Service Area):** The geographic area (usually 40 miles) around a base where Prime is offered. * **PCM (Primary Care Manager):** The specific doctor at the base clinic or in the network responsible for your care. * **DEERS:** The database used to track your eligibility and current address for TRICARE. * **Direct Care:** Care received directly from military doctors inside a base hospital.

## Sources * TRICARE.mil: Find a Military Hospital or Clinic (https://www.tricare.mil/mtf) * Defense Health Agency: TRICARE Regions (https://health.mil) * TriWest Healthcare Alliance (TRICARE West Contractor): (https://www.triwest.com) * Humana Military (TRICARE East Contractor): (https://www.humanamilitary.com)