Contact Assistant

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Corporate Headquarters

Allegiance Benefit Plan Management, Inc.

2806 S. Garfield St.
P.O. Box 3018
Missoula, MT 59806-3018

Toll Free: 800-877-1122
Local: 406-721-2222

Allegiance Benefit Plan Management, Inc.


2806 S. Garfield St.
P.O. Box 3018
Missoula, MT 59806

Toll-Free: 800-877-1122
Fax: 406-523-3111

Allegiance COBRA Services, Inc.


2806 S. Garfield St.
P.O. Box 2097
Missoula, MT 59806-2097

Toll-Free: 800-259-2738
Fax: 406-523-3131

Allegiance Advantage Reimbursement Accounts


2806 S. Garfield St.
P.O. Box 4346
Missoula, MT 59806

Toll-Free: 877-424-3570
Automatic Voice Response System available 24/7
Fax: 877-424-3539

Allegiance Care Management


2806 S. Garfield St.
P.O. Box 2339
Missoula, MT 59806-2339

Case Management
Toll-Free: 877-792-STAR (7827)
Fax: 406-532-1502

Utilization Management
Toll-Free: 800-342-6510
Inpatient Fax: 406-532-1501
Outpatient Fax: 406-532-3513