Health Care & Benefits Division

Medical Plan

Allegiance Benefit Plan Management (Allegiance) is the State Plan's medical plan third party administrator. Allegiance processes medical claims and payments, provides customer service, and sends Explanation of Benefits (EOB) to members showing what has been paid to medical providers and what the member's portion of the cost is. The State Plan uses Allegiance's network of Montana providers and Cigna's large nationwide network for providers outside Montana. Using in-network providers is the best way to control how much you have to pay out-of-pocket for health care.


medical plan administrator changing in 2023

Effective January 1, 2023, BlueCross BlueShield of Montana (BCBSMT) will administer the medical benefits that are currently administered by Allegiance Benefit Plan Management. Medical plan benefits are not changing. Meaning, there are no changes to member deductibles, benefit percentages, office visit/urgent care co-payments or out-of-pocket maximums. The State and BCBSMT are currently working on the transition.

To find a BCBSMT in-network provider and/or facility:
  1. Click “Find Care” in the top bar and select “Find a Doctor or Hospital”
  2. Click “Search as a Guest”
  3. Choose "Blue Preferred PPO" as the plan/network type

If you have BCBSMT specific questions call (888) 901-4989 or visit


Medical Plan highlights

  • All members covered on the medical plan get one routine vision and eye health evaluation each year for $10 copay at a participating provider.
    • This benefit is administered by Cigna Vision, not Allegiance. (Please note if the provider bills as a medical visit, the $10 copay does not apply and normal medical benefits take effect.)
  • Prescription Drug Coverage
  • Use of all Montana Health Centers at no cost for State Plan members over 2 years old. Not available for Medicare retirees. 
  • No cost annual health screening  provided by Montana Health Centers (operated by Premise Health)


No Surprises Act

Effective 1/1/2022, when you receive emergency care or get treated by a non-participating provider at a participating hospital or ambulatory surgical center, you are protected from surprise billing or balance billing. Learn more by reviewing the No Surprises Act FAQ from Allegiance. 


machine readable files 

Effective July 1, 2022, self-funded health plans, like the State Plan, must publicly disclose its in-network rates, and out-of-network allowed amounts and billed charges in a Machine-Readable File in accordance with the Transparency in Coverage Rule (TiC). TiC helps to provide consumers better insight into the cost of services before obtaining care and receiving a bill. 

State Plan Machine Readable File

The Machine Readable File is intended to be processed by a computer system; it is not meant to be a generally accessible resource for a State Plan member. The nature of the files means its often over a Terabyte in size and unable to be processed by an internet browser or even the average computer.

Later this year, additional information will be available regarding the Transparency in Pricing Self Service tool that is intended to serve as a member-facing resource for accessing similar data.

Medical Resources



Phone: (855) 999-1057


Mailing Address: PO Box 3018 Missoula, MT 59806


Mobile App: Allegiance Mobile App


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