TRICARE West Region (HNFS)

As of Jan. 1, 2025, TriWest Healthcare Alliance (TriWest) is the regional contractor for the TRICARE West Region. Visit www.tricare.mil/west to learn more and for any questions about current TRICARE benefits.

HNFS Claims Customer Support Ends

Call center

As part of the TRICARE contract transition, HNFS' claims customer service line is no longer available. Effective May 1, 2025, you must contact TriWest for TRICARE West Region customer service support. Learn more >> www.tricare.mil/west

Authorizations

TriWest will accept referrals and pre-authorizations from HNFS that were issued prior to Jan. 1, 2025. These will be valid through their expiration or June 30, 2025, whichever comes first. TriWest will accept referrals under the Autism Care Demonstration through the expiration date.

HNFS can no longer update or adjust any referrals or pre-authorizations. You must contact TriWest for assistance.

Claims status

Effective May 1, 2025, HNFS can no longer accept TRICARE claims or claim adjustment requests. You can continue to use our "Check Claims Status" tool through June 30, 2025, for claims processed by HNFS (dates of service before Jan. 1).

Website

This website will remain available through June 30, 2025, although content will be limited.

Questions? Concerns?

HNFS recognizes beneficiaries and providers have questions about the changes in the TRICARE West Region. As the outgoing contractor, we have no authority or jurisdiction over TriWest. Here are some options available to you to have your voice heard:

File a grievance with TriWest
Share your concerns with the Defense Health Agency
- Mail: 7700 Arlington Blvd., Ste 5101
  Falls Church, VA 22042-5101
Contact your Congressional leader
File a complaint with the Department of Defense Office of Inspector General
Submit a complaint to the DHA Office of Inspector General (OIG)
Contact the Department of Defense OIG Hotline

West Region States (prior to Jan. 1, 2025)

Prior to Jan. 1, 2025, the TRICARE West Region included the states of Alaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa (except the Rock Island Arsenal area), Kansas, Minnesota, Missouri (except the St. Louis area), Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Texas (Amarillo, Lubbock and El Paso areas only), Utah, Washington, and Wyoming.