Medicare Part D

How Medicare Advantage and Medigap Work in Duluth

DULUTH, Minn. — For people turning 65 in the Northland, one Medicare choice tends to cause more confusion than any other: whether to stay with Original Medicare and add a Medigap policy, or to enroll in a Medicare Advantage plan. Both are legal, both are common, and both are very different in how they work. Understanding the structure before you sign anything is the surest way to avoid a mistake that's hard to reverse later.

Two paths, not two flavors of the same thing

Original Medicare is the federal program itself — Part A (hospital) and Part B (doctor and outpatient). You can go to almost any provider in the country that accepts Medicare, and there's no network. But Original Medicare alone has no cap on your out-of-pocket costs. That's why many people add a Medigap (Medicare Supplement) policy to help cover deductibles and coinsurance, plus a stand-alone Part D plan for prescriptions.

Medicare Advantage (Part C) is different. It's private insurance that replaces how you receive your Medicare benefits. The plan handles your Part A and Part B, usually includes Part D drug coverage, and often bundles extras. Advantage plans typically use networks (HMO or PPO) and require prior authorization for some services. They also have a yearly out-of-pocket maximum built in.

You can be in one path or the other — not both at the same time.

Why the choice matters more than people think

Switching from Medicare Advantage back to Original Medicare with a Medigap policy sounds simple, but it isn't always. In most states, including Minnesota, Medigap insurers can use medical underwriting after your initial enrollment window closes. That means a Medigap company can look at your health and decide whether to accept you, charge more, or decline you.

Minnesota has some consumer-friendly Medigap rules, but the general point stands: the easiest time to pick your path is when you first become eligible for Medicare. Getting this right the first time is one of the most important decisions in the whole program.

What's available around Duluth

Duluth is in St. Louis County, where residents have access to both Original Medicare (available everywhere in the U.S.) and a selection of Medicare Advantage and Part D plans offered by private carriers. Plan counts and specific offerings change every year, so the accurate way to see what's available in your ZIP code is the Plan Finder at medicare.gov or a call to 1-800-MEDICARE.

Availability is set at the county level, not the city level — so a neighbor in Hermantown and a neighbor in Proctor generally see the same menu you do.

2027 rules that apply to everyone

A few program-wide facts are worth knowing before you compare paths:

• Part D out-of-pocket cap: $2,100 in 2026 and $2,400 in 2027. Once your covered drug costs hit that amount, you pay nothing for covered drugs the rest of the year.
• Part D maximum deductible: $615 in 2026 and $700 in 2027 (plans can set theirs lower).
• The donut hole is gone. As of 2025, Part D has three phases — deductible, initial coverage, and catastrophic — with no coverage gap.
• Medicare Prescription Payment Plan: an optional way to spread your drug costs into monthly payments instead of paying at the pharmacy counter.
• IRMAA: higher-income beneficiaries pay surcharges on Part B and Part D. For 2026, IRMAA starts above $109,000 in income for a single filer (based on your 2024 tax return).

These figures apply the same whether you're on Original Medicare or Medicare Advantage.

Dates to circle

• Annual Enrollment Period: October 15 – December 7. This is when you can join, switch, or drop Medicare Advantage and Part D plans for the following year.
• Medicare Advantage Open Enrollment: January 1 – March 31. If you're already in a Medicare Advantage plan, you get one chance during these months to switch to a different Advantage plan or return to Original Medicare (and pick up a Part D plan).

Missing these windows usually means waiting a full year, so mark them now.

How to think it through

There's no universal right answer. A useful way to sort it out:

• How often do you travel, or split time between states? Original Medicare + Medigap travels easily.
• Do you prefer predictable monthly premiums, or lower premiums with copays as you go? The two paths handle costs differently.
• Are your doctors and the hospitals you use — Essentia, St. Luke's, Mayo referrals — in a specific network? Check before you enroll in any Advantage plan.
• What prescriptions do you take? Any plan's drug list (formulary) matters more than the sticker price.

If this feels like a lot, that's normal. Free, unbiased help is available.