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Glossary

TriWest Healthcare Alliance

TriWest Healthcare Alliance is the TRICARE West Region contractor, which runs the beneficiary portal and customer service for West Region beneficiaries.

Applies to: All TRICARE plans · All regions

TriWest Healthcare Alliance is the TRICARE West Region contractor. It is a private company that works for the government; it does not decide who is eligible for TRICARE (that is DEERS).

What it does for you

According to TRICARE, TriWest:

  • runs the beneficiary portal where members sign in and manage care forms;
  • takes updates to your other health insurance, which helps keep claims from being denied or recovered;
  • sends wellness messages on preventive care and health topics through the portal;
  • offers chat with customer service representatives in the portal.

How to reach TriWest

Which region are you in?

TRICARE’s page does not list the states in the West Region; it points to a ZIP code lookup. Our TRICARE regions guide explains the regions and contractors, and TRICARE’s Plan Finder and phone number page show where to start. East Region beneficiaries use a different contractor.