TRICARE West Region (HNFS)
TRICARE Contract Changes
West Region Updates
On Jan. 1, 2025, the TRICARE West Region contractor changed from Health Net Federal Services, LLC (HNFS) to TriWest Healthcare Alliance (TriWest), who is now responsible for providing health care to the military community in the TRICARE West Region.
From Jan. 1–March 30, 2025, HNFS’ customer service team can only support claims for services rendered prior to Jan. 1, 2025. Learn more >>
West Region States (prior to Jan. 1, 2025)
The TRICARE West Region includes 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.
