Attention: Recently, security researchers have identified vulnerabilities in the TLS 1.1 encryption used by most websites to secure information online. Starting Friday, December 15th, 2017, Allegiance will require users to utilize a web browser with TLS 1.2 or later enabled. These advanced protocols offer increased security for your health information. Please update your browser to a version that supports TLS 1.2 or later or to the most current version; older browsers will be unable to access Allegiance websites.

Verification of Dependent Eligibility

Contact Info
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Dependent Info

The completed form can be faxed to (406) 523-3187 or toll-free to 1-800-257-0950, or mailed to:

Allegiance – Enrollment Department
PO Box 3018
Missoula, MT 59806

Please do not hesitate to contact us if you have any questions. Our Enrollment Department Team may be reached at 1-800-877-1122.

By submitting this information you are stating that the information, to the best of your knowledge, is correct.