National Guard

Tri Care Assistance


TriWest is committed to preserving integrity, flexibility, and durability of the military health care system by supplementing the military health care system with access to the finest health care services available, thereby contributing to the continued superiority of the U.S. combat readiness. TriWest believes this is best accomplished through a partnership between the military’s direct-care system and the private sector that results in an integrated approach to meeting the health care needs of active duty members, retirees and their families.



TriWest Healthcare Alliance is a privately held company based in Phoenix and contracted by the Department of Defense (DoD) to administer the TRICARE program in the 21-state West Region. TRICARE is cost-effective, high-quality health care available to our nation's active duty, Guard and Reserve and retired uniformed Services members and their eligible family members and survivors. TriWest received its first DoD TRICARE contract in 1996, then received a four-year contract extension in 2002. TriWest was awarded a five-year contract to administer TRICARE in the West Region in 2003, and now provides access to health care for approximately 2.7 million beneficiaries.




Office Hours:7:30am - 4:00pm Monday - Friday