Allegiance Benefit Plan Management, Inc.
2806 S. Garfield St.
P.O. Box 3018
Missoula, MT 59806
Normal Hours of Operation:
Mon-Fri: 6:00 am -6:00 pm MST.
Medical Case Management/Hospital Notification:
MCA Trust Office:
To answer your questions regarding Life and AD&D Benefits, Hour Bank & Eligibility, Enrollment and Plan Administration
PO Box 30177
Billings, MT 59107
406-256-9910 – office
Allegiance will be closed for the following U.S. holidays:
New Year's Day January 1st
President’s Day third Monday in February
Memorial Day last Monday in May
Independence Day July 4th
Labor Day first Monday in September
Thanksgiving Day fourth Thursday in November
Friday after Thanksgiving fourth Friday in November
Christmas Eve (½ day) December 24th
Christmas Day December 25th