Medicare Advantage

HMO or PPO? Montana Medicare Advantage for 2027: 3 HMO Plans, 17 PPO

HELENA — Montanans comparing Medicare Advantage coverage for 2027 will see a lineup that leans heavily toward PPO designs, with a smaller number of HMO and PFFS options also on the shelf. The split comes from the CMS Medicare Advantage Landscape Source File for CY2027 and reflects what carriers have filed to offer somewhere in the state. Whether any specific plan is available on your street is a county-by-county question.

How many Medicare Advantage plans are offered in Montana for 2027, and how do they split by type?

Montana has 23 Medicare Advantage plans listed for 2027 from 3 carriers, split into 3 HMO plans (including HMO-POS), 17 PPO plans and 3 PFFS plans, according to the CMS Landscape Source File for CY2027. That statewide count treats each plan once, no matter how many counties it serves.

The PPO column is the largest group this year. HMO and PPO are both network-based designs that behave differently when you leave the network, and PFFS follows a different model again. The table on this page shows the full plan-by-plan list; the sections below explain what each label means in practice.

What do HMO, HMO-POS, PPO and PFFS mean for Montana enrollees in 2027?

In Montana for 2027, HMO plans generally require you to use the plan's network and often ask you to pick a primary care provider who coordinates referrals. HMO-POS ("point of service") is a variation that lets you go outside the network for certain services, typically at a higher share of the cost.

PPO plans — the largest category in Montana for 2027 at 17 plans — usually let you see any provider that accepts Medicare, with lower cost sharing in-network and higher cost sharing out-of-network, and they generally do not require referrals. PFFS, or Private Fee-for-Service, is different again: you can see any Medicare provider who agrees to the plan's payment terms on that visit, so acceptance can vary doctor by doctor and visit by visit. For the exact rules, read the plan's Evidence of Coverage or call the carrier.

Which carriers offer HMO, PPO and PFFS plans in Montana for 2027?

For 2027 in Montana, Humana is the carrier filing HMO plans; Humana, Range Health and UnitedHealthcare each file PPO plans; and Humana and UnitedHealthcare each file PFFS plans, per the CMS Landscape file. That is the statewide picture.

What is actually offered in Billings, Missoula, Kalispell, Great Falls, Bozeman, Helena or a rural county depends on each carrier's service-area filing. A plan that appears on the statewide list may not be sold in your ZIP code, and the mix of HMO, PPO and PFFS in your county can be smaller than the statewide 3 / 17 / 3 split. The Medicare Plan Finder at medicare.gov will show only the plans available where you live.

How should Montanans decide whether an HMO or PPO fits their doctors and travel in 2027?

The practical test for 2027 in Montana is to start with your providers and your travel pattern, then match them to plan type. Make a short list of the doctors, clinics and hospitals you want to keep, note any specialists you see, and write down where you spend time outside your home county — a cabin, grandchildren in another state, winter travel.

An HMO or HMO-POS can be a clean fit if your providers are all inside one network and you spend most of the year in one area. A PPO may suit you better if you want the option to see out-of-network providers or you travel frequently, though out-of-network costs are generally higher. A PFFS plan can be useful where network options are thin, as long as the providers you want will accept the plan's terms. Every plan's network, drug list, referral rules and costs are specific to that plan, so confirm each item on medicare.gov or directly with the carrier before enrolling.

What should Montana Medicare beneficiaries do before December 7, 2026?

Before December 7, 2026, Montanans should review their current coverage against the 2027 options for their county, because that is the last day of the Annual Enrollment Period for 2027 and a choice made during it takes effect January 1, 2027. If you do nothing, in most cases your current plan rolls forward with any changes the carrier filed for 2027.

A simple checklist: read the Annual Notice of Change your current plan mailed in September 2026; list your doctors, pharmacies and prescriptions; run them through the Medicare Plan Finder at medicare.gov to see which 2027 plans in your county cover them; and if you have questions, call 1-800-MEDICARE (TTY 1-877-486-2048), which is open 24 hours a day, seven days a week.

Where can Montanans get free help comparing 2027 Medicare Advantage plans?

Free, official help for Montanans comparing 2027 Medicare Advantage plans is available from Medicare directly. The Medicare Plan Finder at medicare.gov lets you enter your ZIP code and prescriptions and see the specific plans offered in your county, along with each plan's own cost and benefit details.

You can also call 1-800-MEDICARE (TTY 1-877-486-2048) any time, day or night, to ask questions about enrollment periods, how HMO, PPO and PFFS plans work, and how to compare options. For plan-specific details, the carrier's own Evidence of Coverage and provider and drug directories are the authoritative sources.