Here’s the fastest way to understand Medicare Supplement Plan N: take Plan G, drill two small holes in it, and lower the price. That’s the whole product. Whether Plan N is a bargain or a false economy depends entirely on how much water leaks through those two holes for you.
Plan N has become one of the most talked-about Medigap letters, largely because Plan G premiums have kept climbing and shoppers want the same protection for less. The good news is that Plan N really does deliver almost the same protection. The honest news is that “almost” has a precise shape — two specific gaps — and the right way to choose is to measure them against your own life, not a brochure. Let’s do exactly that. (As with all Medigap letters, Plan N is federally standardized: one insurer’s Plan N covers exactly what another’s does — only the price and the company differ.)
First, what fills the bucket: everything Plan N shares with Plan G
Before the holes, the water. Plan N and Plan G are identical on all of this:
- Hospital costs, fully handled — the Part A deductible ($1,736 per benefit period in 2026), hospital coinsurance, and up to 365 extra hospital days after Medicare’s coverage runs out.
- The 20% problem, solved — Part B coinsurance covered in full (with the copay exception below).
- Skilled nursing coinsurance — up to $217.50 a day for days 21–100 in 2026.
- Hospice coinsurance, the first three pints of blood, and foreign travel emergencies (80% up to a $50,000 lifetime cap).
And one thing neither plan covers, which surprises people: the annual Part B deductible — $283 in 2026 — comes out of your pocket on both plans. So does prescription coverage (that’s a separate Part D plan), dental, vision, and long-term care. The real difference between G and N is not there. It’s in exactly two places.
Hole #1: the copays — a small, known, capped cost
With Plan N, some doctor’s office visits carry a copay of up to $20, and emergency room visits up to $50 — waived entirely if the ER visit ends in admission. That’s it. Two details soften this further: telehealth visits and most lab work don’t trigger copays, and the amounts are capped per visit, not open-ended.
This hole is the friendly one, because it’s arithmetic you can do in advance. See the doctor four times a year? That’s roughly $80. The copays only hurt if you’re a genuinely frequent visitor — specialists every month, recurring treatments — where dozens of copays start eroding the premium savings.
Hole #2: excess charges — the feared cost that’s actually rare
The second hole sounds scarier than it usually is. If a doctor doesn’t “accept Medicare assignment,” they may bill up to 15% above the Medicare-approved amount — an “excess charge.” Plan G covers these; Plan N does not.
Now the context that defuses most of the fear: roughly 96–97% of doctors nationwide accept Medicare assignment, so excess charges simply never arise for most people. And in eight states — Connecticut, Massachusetts, Minnesota, New York, Ohio, Pennsylvania, Rhode Island, and Vermont — excess charges are prohibited outright, making this hole irrelevant there. The practical defense costs nothing: before seeing a new provider, ask one question — “Do you accept Medicare assignment?” If yes, this gap never touches you.
The math: what the two holes buy you
Plan N’s premium typically runs $30–$60 a month below Plan G from the same carrier in the same area — call it $360–$720 a year back in your pocket. Set that against the holes:
| Your year looks like… | Copays leak roughly | Verdict vs. the premium savings |
|---|---|---|
| Annual checkup + 2–3 visits | $60–$80 | Plan N clearly wins |
| Monthly specialist visits | $240+ | Gap narrows — run your numbers |
| Frequent care + a non-assignment specialist | Copays + excess exposure | Plan G’s certainty likely worth it |
There’s also a softer factor honest advisers mention: Plan N’s rates have often risen more gently than Plan G’s in recent years, partly because its cost-sharing keeps claims lower. Rate history varies by carrier and ZIP code, so it’s worth asking any insurer for theirs — the standardized benefits mean price and rate history are the only real differences between companies.
“I’ll start with Plan N and switch to Plan G later if my health gets worse.” This plan fails exactly when you’d need it: outside your initial guaranteed-issue window, switching Medigap plans requires medical underwriting in most states — the insurer can charge more or decline you for the very health decline that motivated the switch. Choose the letter you can live with long-term, while the choosing is fully yours. (The same one-way-door logic governs the bigger fork in the road, which we map in Medigap vs. Medicare Advantage.)
Who tends to come out ahead on Plan N
- Healthy retirees with a few visits a year — the copays barely register against the premium savings.
- Residents of the eight no-excess-charge states, where hole #2 doesn’t exist.
- Fixed-income budgeters who value $300–$600+ a year in guaranteed savings over first-dollar coverage.
- Longtime Plan F holders watching that closed plan’s premiums climb — many find Plan N nearly identical in practice for far less. (One caution: that switch, too, usually passes through underwriting.)
And who should lean Plan G instead: heavy users of specialist care, anyone whose key doctor bills excess charges, and people for whom zero surprise bills is worth a known extra premium — cost certainty is a legitimate thing to buy. A middle path exists too: High-Deductible Plan G, structurally identical to Plan G but with a $2,950 deductible (2026) before it pays, for those who want catastrophic-style protection at a lower premium.
The bottom line
Medicare Supplement Plan N is Plan G with two small, well-defined holes: capped copays for some office and ER visits, and no coverage for excess charges that 96–97% of doctors never bill anyway. In exchange, the premium drops by roughly $30–$60 a month. For lighter users of care — and anyone in a state that bans excess charges — the math usually favors Plan N comfortably. For frequent specialist patients or certainty-first buyers, Plan G earns its higher price. Measure your own year against the two holes, choose deliberately (remembering that switching later can require underwriting), and either letter will serve you well. Compare actual plans and prices in your area with the official Medicare.gov Plan Finder, or get free, unbiased one-on-one help from your State Health Insurance Assistance Program (SHIP).
Frequently asked questions
What does Medicare Supplement Plan N cover?
Nearly everything Plan G covers: the Part A hospital deductible and coinsurance, the 20% Part B coinsurance, skilled nursing coinsurance, hospice, blood, and foreign travel emergencies. Its only gaps versus Plan G are copays of up to $20 (office) and $50 (ER), and no coverage for Part B excess charges.
What’s the difference between Plan N and Plan G?
Exactly two things: Plan N adds small copays for some office and ER visits, and it doesn’t cover Part B excess charges (up to 15% above Medicare rates from non-assignment doctors). In exchange, its premium typically runs $30–$60 a month lower. Neither plan covers the Part B deductible ($283 in 2026).
How common are Part B excess charges?
Rare — roughly 96–97% of doctors accept Medicare assignment, meaning they can’t bill excess charges. Eight states (CT, MA, MN, NY, OH, PA, RI, VT) prohibit them entirely. Asking a provider “do you accept Medicare assignment?” before an appointment avoids them completely.
Can I start with Plan N and switch to Plan G later?
Technically yes, but outside your initial guaranteed-issue window the switch usually requires medical underwriting in most states — you can be charged more or declined based on health. That makes “upgrade later if I get sick” an unreliable strategy; choose the letter you can keep.