Join the TriWest Healthcare Alliance Network

Are you interested in joining TriWest Healthcare Alliance’s network of medical professionals to care for military families and Veterans? Visit our TRICARE Provider Contracting Q&A page for more details or read on and then submit the online Join Our Network form. TriWest’s provider contracting team looks forward to working with you.

About TriWest

Since its founding in 1996, TriWest has built and maintained networks of high-quality health care providers. TriWest’s health care network supports the U.S. Department of Defense and the U.S. Department of Veterans Affairs. Our nation’s military families and Veterans receive care through this network. TriWest currently holds three contracts with government for providing access to care:

  • VA’s Community Care Network Region 4
  • VA’s Community Care Network Region 5
  • DoD’s TRICARE West Region contract for “T-5”
""

TriWest's Areas of Responsibility

Current and future geographic areas of responsibility are represented by the left dark area of the map and are listed per contract by states and territories below.

map showing TriWest area of responsibility - all states west of Mississippi River plus Alaska, Hawaii, and Pacific territories

TRICARE West Region States

  • Alaska
  • Arizona
  • Arkansas
  • California
  • Colorado
  • Hawaii
  • Idaho
  • Illinois
  • Iowa
  • Kansas
  • Louisiana
  • Minnesota
  • Missouri
  • Montana
  • Nebraska
  • Nevada
  • New Mexico
  • North Dakota
  • Oklahoma
  • Oregon
  • South Dakota
  • Texas
  • Utah
  • Washington
  • Wisconsin
  • Wyoming

VA Community Care Network States

Region 4

  • American Samoa
  • Arizona
  • California
  • Colorado
  • Guam
  • Hawaii
  • Idaho
  • Montana
  • Nevada
  • New Mexico
  • Northern Mariana Islands
  • Oregon
  • Texas
  • Utah
  • Washington
  • Wyoming

Region 5

  • Alaska

""

Who TriWest Serves

Patient eligibility for VA CCN and enrolled TRICARE is different.

  • VA CCN – Eligible Veterans as defined by VA
  • TRICARE – Enrolled active duty service members, active duty family members, National Guard and Reserve members and their family members, military retirees and their family members, survivors, and certain former spouses.

Providers who are already part of TriWest’s network under VA CCN Regions 4 and 5 will soon be able to care for military families and retirees under TRICARE. Subscribe to TriWest’s eNewsletter to stay up to date on timing.

Updated: 2/15/2024 8:23:32 AM