Mike O'Callaghan Military Medical Center
Military hospital · Nellis Air Force Base
4700 North Las Vegas Blvd, Building 1300Nellis Air Force Base, NV 89191
Nevada has 2 military treatment facilities across 2 cities. A military treatment facility (MTF) is a hospital or clinic run by the Department of Defense — care there is TRICARE care by definition, though who can be seen depends on your plan and on the facility's capacity.
Nevada is in the TRICARE West Region, administered by TriWest Healthcare Alliance. For questions about referrals, claims or network status, call 888-TRIWEST (888-874-9378).
The largest facility in the state is Mike O'Callaghan Military Medical Center.
Military hospital · Nellis Air Force Base
4700 North Las Vegas Blvd, Building 1300Military clinic · Naval Air Station Fallon
4755 Pasture Road Bldg 299You're in the TRICARE West Region, run by TriWest Healthcare Alliance. Their directory is the only list that reflects who is actually in network today — network status changes on contract cycles, so a list published anywhere else (including here) would go stale between visits.
Contractors and directory links verified against tricare.mil's provider directory list and its regional contractor page on August 1, 2026.
Being listed here does not mean a facility can take you as a patient. Military hospitals and clinics serve active duty service members first, and most set their own rules about which other beneficiaries they can enroll based on space available. If you are enrolled in TRICARE Prime, your primary care manager (PCM) assignment decides where you are seen. Call the number on the facility above before you go, and see how the plans differ if you are not sure which one you have.
Facility details for Nevada retrieved from the official TRICARE locator on August 1, 2026. Region assignment verified against tricare.mil's region list the same day.