Medicare Supplement vs. Medicare Advantage in Montana
The single biggest Medicare decision for Montana residents is whether to pair Original Medicare with a Medigap plan or to enroll in a Medicare Advantage (Part C) plan. Each path serves a different set of priorities:
| Feature | Medigap (Plan G/N) | Medicare Advantage |
|---|---|---|
| Provider freedom in Montana | Any provider that accepts Medicare | Plan's network only |
| Out-of-network travel coverage | Nationwide | Limited / emergency only |
| Monthly premium | $110 – $200 (Plan G, age 65) | Often $0 |
| Prior authorization | No | Yes, common |
| Drug coverage | Separate Part D required | Usually bundled |
| Dental, vision, hearing | Not included | Usually bundled |
Medigap Plan Letters Available in Montana
The Medigap plans most Montana residents choose:
- Plan G — most comprehensive plan available to those new to Medicare. Covers everything except the Part B deductible (~$257/yr).
- Plan N — lower premium, small copays ($20 office / $50 ER), no Part B excess charge coverage.
- Plan F — covers everything Plan G covers plus the Part B deductible. Closed to those new to Medicare after Jan 1, 2020.
- High-deductible Plans G and F — lower monthly premium with a federally set annual deductible (~$2,870 in 2026). Good fit for healthy enrollees who want catastrophic coverage.
- Plan A and Plan B — basic plans, less commonly chosen.
📍 Montana Medigap Rule
Like most states, Montana follows federal Medigap rules: a one-time 6-month Open Enrollment Period starting the month you turn 65 and have Medicare Part B. Outside that window, carriers may use medical underwriting to deny coverage or raise rates.
Top Montana Cities We Serve
Our licensed independent Medicare agents serve every ZIP code in Montana, including:
Major Medigap Carriers in Montana
Carriers commonly offering Medigap in Montana include AARP / UnitedHealthcare, Mutual of Omaha, Cigna, Aetna, Humana, Blue Cross Blue Shield, Anthem, and regional/state-specific carriers. Same-letter plan benefits are federally standardized, so we compare every carrier in your Montana ZIP code on premium, rate-increase history, and customer service ratings — not on benefits, since those are identical.
Medicare Part D Prescription Coverage in Montana
Medigap plans never include prescription drug coverage. If you choose Original Medicare + Medigap, you must add a standalone Part D plan or face a permanent late enrollment penalty. We run your prescription list against every Part D plan available in your Montana ZIP code on Medicare.gov's official tool to find the lowest total annual cost (premium + copays + deductible).
Medicare Enrollment Periods That Apply in Montana
- Initial Medigap Open Enrollment (one time, 6 months): begins the month you are 65+ and enrolled in Part B. Guaranteed issue, no underwriting.
- Initial Medicare Enrollment (7 months): 3 months before your 65th birthday, the month of, and 3 months after.
- Annual Open Enrollment (Oct 15 – Dec 7): change Medicare Advantage and Part D plans for next year.
- Medicare Advantage OEP (Jan 1 – Mar 31): switch MA plans or return to Original Medicare.
- Special Enrollment Periods: triggered by life events (loss of employer coverage, moving, qualifying for Extra Help).
How We Help Montana Residents
Calling a single carrier's 1-800 number gets you their plan, and only their plan. The agents in our nationwide network represent every major Medigap carrier in Montana, including local and regional carriers that often beat national brands on price for the exact same federally standardized benefits. Carriers each pay agents the same commission, so we have no incentive to push one over another. Our consultations are free, you owe nothing, and your monthly premium is identical whether you enroll through us or directly.
Related: general Medigap guide, health insurance for under-65, life insurance. Sister sites: InsureCo Medigap, MyInsuranceRates Medicare overview.