The One Thing Standing Between You and Near-Zero Medical Bills
The 2025 Medicare Part B deductible is $257, and that’s essentially the only thing Plan G doesn’t cover. Pay that once at the start of the year, and you’re done. After that, Plan G picks up virtually everything Medicare approves for the rest of the year. No copays. No coinsurance. No hospital bills showing up weeks later.
That’s the short version. But there’s more to it than that, and I’ve watched people make expensive mistakes because they didn’t understand the full picture before they enrolled. So let’s go through this carefully.
What the Plan G Deductible Actually Covers (and What It Doesn’t)
When people say “the Plan G deductible,” they almost always mean the Part B deductible. In 2025, that’s $257. You pay it once per calendar year, typically on your first outpatient service or doctor visit of the year. After you’ve paid it, Plan G covers 100% of the Medicare-approved amount for Part B services for the rest of the year.
But here’s what a lot of people miss: there’s also a Part A deductible, and Plan G covers that one in full. The 2025 Part A deductible is $1,676 per benefit period. That’s what you’d owe if you were hospitalized. Plan G pays that entire amount so you pay nothing.
Think about what that means in real terms. A 70-year-old in Florida who has hip replacement surgery could be looking at a $1,676 hospital deductible just to walk in the door. Plan G wipes that out. Then after she pays her $257 Part B deductible for outpatient follow-up visits, Plan G covers the rest of that too.
Here’s a side-by-side look at what Plan G covers compared to Original Medicare alone:
| Cost Type | Original Medicare Only (2025) | With Plan G (2025) |
|---|---|---|
| Part A hospital deductible (per benefit period) | $1,676 you owe | $0 (Plan G pays it) |
| Part B annual deductible | $257 you owe | $257 you owe |
| Part B coinsurance (20% after deductible) | You pay 20% of all approved costs | $0 (Plan G pays it) |
| Part A coinsurance (days 61-90 in hospital) | $419/day you owe | $0 (Plan G pays it) |
| Skilled nursing facility coinsurance (days 21-100) | $209.50/day you owe | $0 (Plan G pays it) |
| Foreign travel emergency (80% after $250 deductible) | Not covered | Covered up to plan limits |
So when someone says Plan G has a deductible, they mean one $257 payment per year. Everything above? Gone.
Plan G vs. Plan N vs. High-Deductible Plan G: Which One Actually Makes Sense
There are actually three versions of Plan G floating around, and this is where I see people get confused.
Standard Plan G is what most people mean when they say “Plan G.” You pay the $257 Part B deductible, Plan G covers the rest. Premiums for a 65-year-old are typically $100 to $200 per month depending on your state and the insurer. Someone in Ohio might pay $130/month. Someone in New York could pay closer to $190.
High-Deductible Plan G is a separate version with a much higher deductible before Plan G kicks in at all. In 2025, that deductible is $2,870. The upside is that premiums are much lower, often $40 to $70 per month. The idea is that you’re self-insuring for routine costs and only need the coverage if something serious happens.
Plan N is the third option worth mentioning here. Plan N covers the Part A deductible just like Plan G, but it doesn’t cover the Part B deductible or small copays ($20 for office visits, $50 for ER visits that don’t result in admission). Premiums are usually lower than standard Plan G, sometimes by $20-$40 per month.
Which one is right for you? Here’s my honest take:
- If you’re in good health, relatively young (65-68), and comfortable holding some financial risk, High-Deductible Plan G is worth a serious look. The math can work in your favor for years before a major claim.
- If you see doctors regularly or have a chronic condition, Standard Plan G gives you the cleanest, most predictable coverage. You pay $257 once and you’re done for the year.
- If you’re cost-conscious but still want solid hospital protection and you don’t mind small copays, Plan N is a reasonable middle ground.
The Mistake I See People Make All the Time
People confuse Plan G with Plan F and assume Plan G covers the Part B deductible. It doesn’t. Plan F did cover it, which is why Plan F used to be the gold standard. But Plan F was closed to new enrollees after January 1, 2020. Anyone who turned 65 after that date can’t enroll in Plan F at all.
I’ve seen people receive marketing materials from insurers describing their new plan as covering “all Medicare-approved costs,” and they assume that means zero out-of-pocket. Then they get a bill for $257 in January after their first doctor visit and they’re furious. The coverage is accurate. The assumption was wrong.
The $257 Part B deductible is intentional. When Congress eliminated Plan F for new enrollees, the stated reasoning was that first-dollar coverage removes any incentive to think about whether a service is necessary. That’s a policy argument you can agree or disagree with, but it’s why the rule exists. Plan G is the best coverage currently available to new Medicare enrollees, but it was designed to have that one small gap.
The other mistake? People focus obsessively on the $257 and ignore the much bigger exposure it prevents. A single hospitalization with a skilled nursing facility stay could cost you $15,000 or more with Original Medicare alone. Plan G covers nearly all of it after that $257 deductible. Getting fixated on the small number while ignoring the large ones is backwards thinking.
How to Think About Plan G Premiums vs. Your Deductible
Let me give you a real example. A 67-year-old in Ohio finds a Plan G policy for $145 per month. That’s $1,740 per year in premiums. Add the $257 Part B deductible and your maximum predictable annual cost is $1,997, assuming no major hospitalization.
Now compare that to Original Medicare alone. If you have three specialist visits, a few lab tests, one imaging scan, and one short hospitalization in a year, you could easily hit $5,000 to $8,000 out of pocket depending on the services. Plan G turns that unpredictable exposure into a known, fixed number.
That predictability is what you’re buying. For people on fixed incomes, not just the coverage itself but the ability to budget for healthcare costs with confidence, that has real value that doesn’t show up in a simple premium-vs-deductible comparison.
That said, if you’re genuinely healthy, see a doctor once a year for a wellness visit, and have a solid emergency fund, High-Deductible Plan G might save you $800 to $1,200 per year in premiums. Over five healthy years, that’s real money. The risk is that year six brings a cancer diagnosis or a fall, and then you’d rather have had standard Plan G all along.
There’s no objectively correct answer, but I’ll tell you this: most people sleep better with standard Plan G, and the premium difference usually isn’t large enough to justify the anxiety of the high-deductible version unless you’re genuinely financially comfortable absorbing a $2,870 hit.
Bottom Line
For most people turning 65 today, Medicare Supplement Plan G is the best coverage available, and the 2025 Part B deductible of $257 is a small price for what you get in return. If you’re in average or below-average health, have chronic conditions, or simply want to know exactly what you’ll spend on healthcare each year, standard Plan G is the right call. High-Deductible Plan G deserves a look if you’re healthy and cost-sensitive, but don’t let the lower premium fool you into thinking it’s always the smarter move.
Frequently Asked Questions
Does Plan G cover the Part B deductible in 2025?
No. The 2025 Part B deductible is $257, and you pay that yourself. After you’ve met it, Plan G covers 100% of Medicare-approved Part B costs for the rest of the year. This is the main difference between Plan G and the now-discontinued Plan F.
What is the High-Deductible Plan G deductible for 2025?
The 2025 High-Deductible Plan G deductible is $2,870. You pay all Medicare-approved costs up to that amount before the plan pays anything. In exchange, premiums are significantly lower, typically $40 to $70 per month compared to $100 to $200 for standard Plan G.
Does Plan G cover the Part A hospital deductible?
Yes, completely. The 2025 Part A deductible is $1,676 per benefit period. With standard Plan G, you pay nothing toward it. This is one of the most underappreciated benefits of Plan G, since a single hospitalization can trigger that full deductible.
Can I still enroll in Plan G if I missed my initial enrollment window?
You can apply, but you may face medical underwriting outside of your Medigap Open Enrollment Period (the six months starting when you’re both 65 and enrolled in Part B). That means an insurer can charge you more or deny coverage based on your health history in most states. If you’re in that window, don’t delay. Guaranteed issue rights are too valuable to let expire.
