Allegiance Benefit Plan Management processes medical claims for the State of Montana Benefit Plan, however the State decides rates, out-of-pocket costs, and coverages. Allegiance offers broad online access (while following security guidelines) that puts benefits and claims information at your fingertips. Click here to view their online services brochure. You can also view the Allegiance Welcome Book for great information on Allegiance services, your ID Card, and more.
PO Box 3018 Missoula, MT 59806