Plan G vs. High-Deductible Plan G: Which One Actually Saves You Money?

The coverage is identical

This is the part people are usually surprised by. Standard Plan G and High-Deductible Plan G (HDG) pay for exactly the same things:

• Part A deductible and hospital coinsurance
• Part B coinsurance and excess charges
• Skilled nursing facility coinsurance
• Hospice coinsurance
• The first three pints of blood
• Foreign travel emergency coverage

Neither version covers the Part B deductible. Whatever plan you choose, that piece is always on you.

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So what’s actually different? When the plan starts paying

Standard Plan G kicks in almost right away. Once you meet the Part B deductible ($283 in 2026), the plan takes over and your Medicare-covered care runs close to zero out of pocket for the rest of the year.

High-Deductible Plan G makes you clear a much bigger hurdle first. You pay a calendar-year deductible set by CMS ($2,900 for 2026) before the plan pays a dime. The Part B deductible counts toward that number, and so does anything else you’d otherwise owe under Medicare Part A or B. Once you hit that deductible, HDG behaves exactly like standard G for the rest of the year. It resets every January 1st.

In plain terms: standard G protects you from the first dollar past a small deductible, while HDG asks you to shoulder more risk yourself in exchange for a much lower premium.

Where the classic 80/20 rule fits in

If you’ve heard that Medicare pays 80% and you pay 20% for doctor visits and other Part B services, that’s still true, and it hasn’t changed for 2026. Once you meet your Part B deductible, Medicare covers 80% of the Medicare-approved amount for most Part B services, and you’re on the hook for the remaining 20%. That 20% coinsurance is exactly what Plan G steps in to cover once the plan is active, whether you’re on standard G or HDG.

A couple of related details worth knowing:

• Excess charges are a separate thing from the 20%. If a provider accepts Medicare but not Medicare assignment, they can charge up to 15% more than the Medicare-approved amount, and that gap is called a Part B excess charge. Plan G covers those too, which not every supplement plan does.
• The 80/20 split itself rarely changes. What CMS adjusts each year is the dollar deductible, not the ratio. So the coinsurance math in the scenarios below holds up from year to year, even as the specific deductible figures get updated.
• Not everything follows the 80/20 pattern. Certain preventive services are covered by Medicare at 100% with no coinsurance at all, so those don’t factor into the Plan G math either way.

What that looks like with real numbers

Let’s say standard Plan G runs $150 a month ($1,800 a year) and HDG runs $50 a month ($600 a year). Here’s how three different years might actually play out.

Scenario 1: A quiet year

You meet your Part B deductible and don’t need much else, so your total Medicare-covered costs for the year land right around $283.

	Standard G	High-Deductible G
Premium	$1,800	$600
Out-of-pocket costs	$283	$283
Total for the year	$2,083	$883

HDG wins here, and it’s not close. You save $1,200 for a year you barely used your coverage.

Scenario 2: A moderate year

Maybe a minor outpatient procedure and a handful of specialist visits add up to about $1,500 in Medicare-covered costs.

	Standard G	High-Deductible G
Premium	$1,800	$600
Out-of-pocket costs	$283	$1,500
Total for the year	$2,083	$2,100

Now it’s basically a wash. This is close to the break-even point, somewhere around $1,483 in yearly Medicare costs is where the two plans cost about the same overall.

Scenario 3: A heavy year

A hospital stay and some follow-up care push your Medicare-covered costs to around $5,000.

	Standard G	High-Deductible G
Premium	$1,800	$600
Out-of-pocket costs	$283	$2,900 (the deductible cap)
Total for the year	$2,083	$3,500

Standard G comes out well ahead, saving you over $1,400. And this is the scenario worth sitting with, because you don’t get to pick which kind of year you’re going to have in advance.

What Orman’s post doesn’t get into

A few things worth adding to her framing, because they change the math for a lot of people:

• Once you’re past your initial enrollment window, Medigap can require medical underwriting. If you pick Medicare Advantage first and want to switch to a Medigap policy down the road, a health condition could get you charged more or, depending on your state, turned down. Texas doesn’t have guaranteed-issue protections outside a few specific situations, so this decision is easier to walk back in your first year than it is five years in.
• Medicare Advantage networks change every year. Your favorite specialist being in-network this January doesn’t guarantee they’ll be in-network next January. Medigap doesn’t have this problem at all, since it rides alongside Original Medicare’s nationwide acceptance.
• Dental and vision under Medicare Advantage plans often have caps around $1,000 to $1,500 a year, which sounds generous until you need one implant that costs $3,000 to $5,000 on its own. Orman’s right that this is a real gap, but it’s worth knowing the MA “solution” to it is often partial, too.
• Travel and snowbird lifestyles matter here. If you split time between Texas and another state, or you travel a lot, Original Medicare plus Medigap covers you anywhere in the country that accepts Medicare. A Medicare Advantage HMO usually won’t, outside of emergencies.

The honest answer

There isn’t a universally “better” choice here, and I’d be doing you a disservice if I pretended there was. It comes down to your health history, how much monthly premium you’re comfortable carrying, whether you travel, and how much risk you’re willing to sit with. Orman’s core message is right: don’t assume Medicare has you covered, because it doesn’t, not fully. But which tool you use to close that gap is a personal decision, not a one-size-fits-all answer.

If you’re working through this decision and want to talk through your specific situation, that’s exactly the kind of conversation I have with people every day. Feel free to reach out.

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