Health Care & Benefits Division

Allegiance Benefit Plan Management

Allegiance Benefit Plan Management processes medical claims for the State of Montana Benefit Plan, however the State decides rates, out-of-pocket costs, and coverage. Allegiance offers broad online access (while following security guidelines) that puts benefits and claims information at your fingertips. Learn more by reviewing the information below. 


Online Portal Features
  • Use for instant access to claims’ status, eligibility, benefits information, ID cards and more. This guide will provide an overview on navigating the updated site and using its services.
Member Portal Access
  • Access your member portal by going to, selecting "Health/Reimbursement Login", and logging into your account. First time users will need to register as a new user. 
  • If you have not used your Ask Allegiance login in the past 24 months, the system will require you to create a new account for security purposes. 


Allegiance Mobile App
  • Download the Allegiance Mobile App from the Apple App Store or Google Play Store. 
  • New users will need to first create a login at before being able to use the app. 
Allegiance Welcome Booklet for New Members 
  • Provides an overview on the services offered by Allegiance to State Plan members. 


Phone: (855) 999-1057


Mailing Address: PO Box 3018 Missoula, MT 59806


Mobile App: Allegiance Mobile App

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