Medicare Supplement

Medigap Plans A–N: What Glen Cove Retirees Should Know

Medigap Plans A–N: What Glen Cove Retirees Should Know — plain-language Medicare information for Glen Cove, New York.

GLEN COVE, N.Y. — If you've started shopping for a Medicare Supplement policy, you've probably noticed something strange: the plans have letter names like A, B, G, and N. Those letters aren't marketing labels. They're a federal system that makes comparing Medigap policies far easier than most people expect — once you know how to read them.

Here's what the letters mean, what Medigap actually pays for, and the pitfalls to avoid before you sign anything.

What Medigap actually does

Medicare Supplement Insurance — Medigap — is private insurance that helps pay some of the out-of-pocket costs Original Medicare leaves behind. That includes things like the Part A hospital deductible, coinsurance for hospital stays, and the 20% coinsurance you'd otherwise owe under Part B.

Medigap does not replace Medicare. It fills the gaps. You still use your red, white, and blue Medicare card, and your Medigap policy picks up its share afterward.

One important limit: Medigap policies sold today do not include prescription drug coverage. For drugs, you'll enroll in a separate Part D plan.

Why the letters exist

In most states, Medigap plans are standardized by the federal government. That means the benefits inside each lettered plan are the same no matter which insurance company sells it. A Plan G from Company X covers the exact same core benefits as a Plan G from Company Y.

What can differ is the price, the customer service, and whether the company uses medical underwriting after your initial enrollment window. But the benefits chart itself? Identical by law.

That's a big deal, because it means you can compare policies on price and reputation instead of trying to decode 20 different benefits summaries.

The plan letters available today

The currently sold plans are A, B, D, G, K, L, M, and N. Plans C and F are still held by people who qualified for them earlier, but they are no longer sold to people who became eligible for Medicare on or after January 1, 2020.

Plan G and Plan N tend to be the most talked-about among newly eligible enrollees, largely because they offer broad coverage without duplicating benefits Medicare already provides. Plans K and L work differently — they use cost-sharing and an annual out-of-pocket limit rather than covering nearly everything up front.

You can see the full benefits grid at medicare.gov, which lists exactly what each letter covers.

Glen Cove sits in Nassau County — and New York is different

Glen Cove is in Nassau County, and New York is one of a small number of states with its own Medigap rules on top of the federal standard. New York requires community rating (everyone pays the same premium regardless of age) and offers continuous guaranteed issue rights, meaning insurers generally can't turn you down or charge you more for health reasons.

That's unusual. In most states, if you apply outside your initial Medigap Open Enrollment Period, an insurer can use medical underwriting. New York's rules are more forgiving, but premiums here also tend to reflect that broader protection. Before you buy, it's worth confirming current rules with the New York State Department of Financial Services or your local SHIP counselor.

The timing mistake to avoid

Your Medigap Open Enrollment Period is a one-time, six-month window that begins the month you're 65 or older and enrolled in Part B. During that window, federally, you have a guaranteed right to buy any Medigap plan sold in your state, regardless of health history.

Miss it, and in most states you could be denied or charged more. Again, New York's rules are friendlier — but the safest move nationwide is to enroll during that first window.

Also remember: Medigap does not work with Medicare Advantage. You pick one path or the other. Switching between them later is possible, but the rules get complicated, so it's worth talking through with someone neutral before making the move.