TRICARE Indiana: Camp Atterbury & 2026 East Region Guide | TRICARE.com

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## TRICARE in Indiana Indiana is part of the **TRICARE East Region**. As of 2026, the regional contractor providing managed care and administrative support is **Humana Military**. While Indiana does not host a large active-duty power projection platform like Fort Liberty or Norfolk, it is a critical hub for National Guard and Reserve operations, particularly centered around Camp Atterbury.

## Major military installations While Indiana has a large veteran and reserve population, its primary military footprint consists of training sites and specialized centers:

* **Camp Atterbury (Army/National Guard):** Located near Edinburgh, this is a major pre-deployment mobilization site and multi-component training center. * **Muscatatuck Training Center (Army/National Guard):** Located near Butlerville, serving as an urban training environment. * **Naval Surface Warfare Center (NSWC) Crane Division:** Located in Crane, it is the third-largest Navy installation in the world by geographic area. * **Grissom Air Reserve Base (Air Force Reserve):** Located near Peru, home to the 434th Air Refueling Wing. * **Fort Wayne Air National Guard Base:** Home to the 122nd Fighter Wing. * **Hulman Field (Air National Guard):** Located in Terre Haute, home to the 181st Intelligence Wing.

## Plans available in Indiana Beneficiaries in Indiana can access the following plans depending on their status and location:

| Plan | Eligibility | Key Features (2026) | | :--- | :--- | :--- | | **TRICARE Prime** | Active Duty, Retirees | Managed care with a Primary Care Manager (PCM). Available in Prime Service Areas (PSAs). | | **TRICARE Select** | Active Duty Families, Retirees | PPO-style plan; allows you to see any network provider without a referral. | | **TRICARE Reserve Select (TRS)** | Qualified Selected Reserve | Premium-based plan for Guard/Reserve members and their families. | | **TRICARE Retired Reserve (TRR)** | Qualified Retired Reserve | Premium-based plan for gray-area retirees under age 60. | | **TRICARE For Life (TFL)** | Medicare-eligible retirees | Wraparound coverage for those with Medicare Part A and B. | | **TRICARE Young Adult** | Unmarried children 21–26 | Available in Prime or Select formats for adult children not eligible for own employer coverage. |

*Note: The US Family Health Plan (USFHP) is not currently available in Indiana.*

## Finding care in Indiana Because many beneficiaries in Indiana live far from a Military Treatment Facility (MTF), most care is delivered through civilian network providers.

* **Provider Directory:** All 2026 Indiana network searches should be conducted via the **Humana Military East Region provider search tool**. * **Network vs. Non-Network:** Using a "Network" provider keeps your out-of-pocket costs lower. In rural areas near Muscatatuck or Crane, you may need to use "Non-Network" providers; however, you will pay higher point-of-service deductibles and cost shares. * **Camp Atterbury Care:** While Camp Atterbury has medical assets for mobilizing troops, family members and retirees in the Edinburgh/Columbus area typically utilize civilian networks or the health systems in Indianapolis or Bloomington. * **Telehealth:** Humana Military offers robust telehealth options for Indiana residents, frequently utilizing partners like Doctor On Demand to bridge the gap in rural areas.

Common questions for Indiana beneficiaries

**What happens to my coverage if I am mobilizing at Camp Atterbury?** When National Guard or Reserve members are called to active duty for more than 30 days, they (and their families) transition from TRICARE Reserve Select to active duty benefits (Prime or Select). Ensure your DEERS record is updated immediately upon receipt of orders to avoid coverage gaps.

**Can I use the MTF at Wright-Patterson AFB if I live in Eastern Indiana?** Yes. Many beneficiaries in Eastern Indiana (near Richmond or Muncie) are within the Prime Service Area of Wright-Patterson Air Force Base in Ohio. You may be eligible to enroll in Prime and designate an MTF provider there if you are within the required drive-time radius.

**How does TRICARE work with Indiana Medicaid (Healthy Indiana Plan)?** TRICARE is always the first payer before Medicaid. If you are eligible for both, TRICARE pays its share first, and the Healthy Indiana Plan (HIP) acts as the payer of last resort.

## Sources * Humana Military (TRICARE East Contractor): [humanamilitary.com](https://www.humanamilitary.com/) * TRICARE Official Site: [tricare.mil](https://www.tricare.mil/) * Camp Atterbury Official Site: [atterbury.in.ng.mil](https://atterbury.in.ng.mil/) * Defense Health Agency (DHA): [health.mil](https://health.mil/)