Medicare Supplement

Why Medigap Letters Aren't Random for Huber Heights Readers

HUBER HEIGHTS, Ohio — If you have Original Medicare and you've started shopping for extra coverage, you've probably run into a wall of letters: Plan A, Plan G, Plan N, Plan K. It can feel like alphabet soup. The good news? Those letters aren't random, and once you understand how they work, comparing Medicare Supplement (Medigap) coverage gets a lot simpler.

Making sense of Medigap in Huber Heights

Here's a plain-English guide to what Medigap actually does and why those standardized letters matter — especially for folks here in Montgomery County.

What Medigap is (and what it isn't)

Medigap is private insurance you can buy to help pay some of the out-of-pocket costs that Original Medicare (Part A and Part B) leaves behind. Think coinsurance, copayments, and Part A deductibles.

A few key things to keep in mind:

• Medigap only works with Original Medicare — not with Medicare Advantage.
• It does not include prescription drug coverage. For that, you'd add a separate Part D plan.
• You pay a monthly premium to the insurance company on top of your Part B premium.
• Medigap generally doesn't cover dental, vision, hearing aids, or long-term care.

In short, Medigap is a companion to Original Medicare designed to smooth out the bills.

Why the letters are "standardized"

Here's the part that trips people up. In most states, including Ohio, Medigap plans are standardized by the federal government. That means Plan G sold by one insurance company has to offer the exact same core benefits as Plan G sold by another company.

The letters currently available to new enrollees include A, B, D, G, K, L, M, and N. (Plans C and F are still around, but only for people who became eligible for Medicare before January 1, 2020.)

Because the benefits are set by law, the main things that differ between two companies selling the same lettered plan are:

• The monthly premium
• The company's customer service and reputation
• How they handle rate increases over time

That's it. If two carriers both sell Plan N, the coverage itself is identical.

What each letter roughly covers

Every Medigap plan letter covers a different mix of gaps. Some cover almost everything; others cover less but come with lower premiums. Here's the general idea:

• Plan A — The most basic set of benefits.
• Plan G — One of the most comprehensive options available to new enrollees, though it doesn't cover the Part B deductible.
• Plan N — Similar to G but with some copays for office and ER visits.
• Plans K and L — Cost-sharing plans that pay a percentage (rather than all) of certain costs, with an annual out-of-pocket limit.

For the full side-by-side chart showing exactly what each letter covers, the official Medicare.gov Medigap comparison tool is the best source.

When you can buy Medigap matters — a lot

This is the piece a lot of Huber Heights readers wish they'd known sooner. You have a one-time Medigap Open Enrollment Period that starts the month you're 65 or older and enrolled in Part B. It lasts six months.

During that window:

• Insurance companies must sell you any Medigap plan they offer.
• They cannot charge you more because of health conditions.
• They cannot turn you down.

After that window closes, insurers in Ohio can generally use medical underwriting — meaning your health history can affect whether you qualify or what you'll pay. That's why timing this decision carefully is so important.

How this fits with the rest of your Medicare choices

Huber Heights is in Montgomery County, where beneficiaries can choose between staying on Original Medicare (and possibly adding a Medigap plan plus a stand-alone Part D drug plan) or enrolling in a Medicare Advantage plan that bundles things together. You cannot have Medigap and Medicare Advantage at the same time.

A few 2026 program figures worth knowing as you weigh your options:

• Part D now has an annual out-of-pocket cap of $2,100.
• The Part D deductible can be no more than $615.
• The old coverage gap (the "donut hole") was eliminated in 2025 — Part D now has three phases.
• If you'd like to spread drug costs across the year, the Medicare Prescription Payment Plan is available.
• IRMAA surcharges begin above $109,000 in income for a single filer in 2026.
• The Annual Enrollment Period runs October 15 through December 7.