Medicare Advantage Plans in Billings, MT
Residents of Billings and surrounding Yellowstone County have access to a diverse selection of Medicare Advantage plans that combine Parts A and B of Original Medicare with additional coverage, such as prescription drug benefits.
Key Takeaways
Total Plans: Beneficiaries in Yellowstone County can choose from over 20 unique Medicare Advantage options (part of 37 total Medicare plans available in the county, including stand-alone drug and special needs plans).1
Average Premiums: While local monthly plan costs average roughly $10 to $15 per month, many $0-premium Medicare Advantage plans are available to eligible residents.1
Carrier Variety: Options include top regional and national insurance carriers such as Humana, PacificSource Medicare, Blue Cross Blue Shield of Montana, and UnitedHealthcare.
What is a Medicare Advantage plan in Billings?
Medicare Advantage plans, also known as Medicare Part C, offer an alternative to Original Medicare. These plans are legally required to provide the same coverage as Original Medicare, but may include additional routine benefits such as dental, vision, and hearing coverage.
Because Medicare Advantage plans operate through managed care networks (typically HMOs or PPOs), securing coverage in Billings depends on network design. Unlike Original Medicare, which allows you to visit any provider that accepts Medicare nationwide, a Medicare Advantage plan requires you to receive care from its network of contracted doctors and facilities.
When choosing a plan in Yellowstone County, you must confirm that your essential local medical providers are classified as in-network:
Billings Clinic: As Montana’s largest independent healthcare system, it provides comprehensive primary, specialty, and acute care.
Intermountain Health St. Vincent Regional Hospital: A key regional anchor featuring a designated Level I Trauma Center.
RiverStone Health: An important local community health center offering accessible primary, dental, and preventive care services.
If a plan does not include these primary regional health systems in its network, going out-of-network for non-emergency care may result in significantly higher out-of-pocket expenses or a complete lack of coverage.
HMO vs. PPO Plans in Yellowstone County
Choosing between a Health Maintenance Organization (HMO) and a Preferred Provider Organization (PPO) comes down to balancing monthly costs against network flexibility—a decision closely tied to how you navigate healthcare in Billings and surrounding rural areas.
HMO and HMO-POS Plans (e.g., PacificSource MyCare Choice): These plans often feature lower monthly premiums (frequently starting at $0 or low cost) and structured care coordination. However, they require adherence to local networks—such as the Billings Clinic system—and may require referrals from a primary care physician or prior authorizations before seeing specialists.
PPO Plans (e.g., HumanaChoice PPO): PPO options may be better suited for Montanans living in rural communities outside the immediate Billings metro area, as well as for those who travel out of state. These plans offer greater flexibility to see out-of-network specialists without requiring referrals, though covered services received out-of-network generally incur higher copays or coinsurance.

