Medigap Plan G vs High Deductible Plan G

Written by: 
Matt Kiggins
Last updated: 
May 6, 2026

If you’ve looked at Medigap Plan G recently - or you already have it and just saw your rate go up - you’re probably asking the same question a lot of people are right now: why does this keep getting more expensive?

You’re not imagining it. Across 2025, many Plan G policies jumped 10–20% or more, and heading into 2026, that trend hasn’t really slowed down. And here’s the frustrating part: nothing about the coverage changed. You’re paying more for the exact same plan.

That’s where people start to pause.

Not because Medigap Plan G is bad - it’s still one of the strongest, most predictable options you can have - but because it’s becoming harder to justify the cost when it keeps climbing year after year. At some point, it’s fair to ask whether you’re paying for peace of mind…or just overpaying for how the plan is structured.

And that’s the part most people don’t realize: this isn’t really a coverage problem, it’s a payment structure problem.

Sitting right next to Medigap Plan G is something most people either overlook or don’t fully understand - High Deductible Plan G. And despite the name, it’s not a stripped-down version of your coverage. It’s the same plan underneath, same doctors, same freedom, same protection. The difference is you’re not prepaying for everything every single month.

When you actually look at the numbers, this is where it starts to click. A typical Plan G might run somewhere in the $180 to $250 per month range, while High Deductible Plan G is often closer to $45 to $75. That’s a difference of $120 to $200 every month - or roughly $1,400 to $2,400 a year - that you’re either spending no matter what, or keeping unless you actually need care.

So the real question isn’t whether Plan G is “worth it” in terms of coverage. It’s whether the way you’re paying for that coverage still makes sense.

Because you’re not giving anything up with High Deductible Plan G - you’re just choosing not to pay for it upfront.

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What Is High Deductible Plan G?

High Deductible Plan G sounds more complicated than it actually is, but once you understand how it works, it’s one of the simplest concepts in Medicare.

At its core, it’s the exact same coverage as a standard Plan G.

That means:

  • You can see any doctor nationwide that accepts Medicare
  • There are no networks to worry about
  • No referrals needed
  • No prior authorizations for most services

Nothing about your access to care changes.

The Only Real Difference

The difference isn’t coverage - it’s when the coverage kicks in. With a standard Plan G, you pay a higher monthly premium so the plan starts covering costs almost immediately (after the small Part B deductible).

With High Deductible Plan G, you’re responsible for an annual deductible first - in 2026, that’s $2,950. Until you reach that amount, you pay Medicare-approved costs out of pocket.

After you hit it? The plan works exactly like Plan G, covering 100% of eligible expenses for the rest of the year.

A Better Way to Think About It

Instead of thinking of this as a “different plan,” it’s more accurate to think of it as a different way of paying for the same plan.

  • Plan G = you prepay for coverage through higher monthly premiums
  • High Deductible Plan G = you pay as you go first, then the plan takes over

That’s the trade-off.

Why This Structure Exists

Insurance is always about how risk is shared. With Plan G, you’re shifting almost all of that risk to the insurance company - and they charge you higher premiums for that.

With High Deductible Plan G, you’re agreeing to handle the smaller, more predictable costs yourself, while still protecting against larger, unexpected expenses. That’s why the premiums are so much lower.

Where This Starts to Matter

This difference really matters when you look at how often you actually use healthcare.

If you’re someone who:

  • Rarely goes to the doctor
  • Doesn’t have ongoing treatments
  • Mainly wants protection against major events

Then you may never come close to hitting that deductible in most years. Which means you’re keeping the premium savings instead of spending it.

On the other hand, if you know you’ll use care frequently, you’re more likely to reach that deductible - and that’s where Plan G’s predictability starts to make more sense.

Core Concept: Medicare Pays First (This Is Where Most People Get Confused)

This is the part that gets misunderstood more than anything else - and honestly, it’s where a lot of explanations fall short.

With High Deductible Plan G, people hear “$2,800+ deductible” and immediately assume: “So I’m paying everything until I hit that number?”

That’s not how it works. Just like any Medicare Supplement plan, Original Medicare (Part A and Part B) pays first. That never changes.

So when you receive care:

  • Medicare pays its share (typically about 80% for Part B services)
  • What’s left over is your responsibility - and that’s what applies toward the deductible

What the Deductible Actually Applies To

The deductible only applies to Medicare’s leftover portion, not the full bill. That’s a big distinction.

You are not paying 100% of your medical costs until you hit the deductible. You are only paying the portion that Medicare doesn’t cover.

Simple Example

Let’s say you have a procedure that costs $1,000:

  • Medicare pays 80% = $800
  • Remaining 20% = $200

With High Deductible Plan G, that $200 goes toward your deductible. You don’t pay the full $1,000 - just the part Medicare leaves behind.

This is what makes High Deductible Plan G far more manageable than people expect. Because Medicare is still doing the heavy lifting, the amount you actually pay toward the deductible accumulates more gradually than most assume.

That’s why many people never reach the full deductible in a typical year - especially if their healthcare usage is moderate.

Part A (Hospital) Cost Comparison

Hospital coverage is where people tend to get the most nervous - and it’s also where understanding how Medicare works really matters.

Let’s walk through a real-world example so this actually makes sense.

Example Scenario

Say you have a hospital stay.

  • Total billed charges: $30,000
  • Medicare-approved amount: $18,000

This is important - Medicare doesn’t use the full billed amount. It uses its approved amount, and that’s what everything is based on.

For inpatient hospital stays under Part A:

  • Medicare covers the majority of the approved cost
  • You’re responsible for the Part A deductible and any applicable coinsurance

In 2026, the Part A deductible is $1,736.

How Each Plan Handles It

With standard Plan G:

  • Plan G covers the entire Part A deductible
  • Covers coinsurance as well
  • Your out-of-pocket: $0

With High Deductible Plan G:

  • You are responsible for the Part A deductible first
  • That amount applies toward your annual high deductible ($2,950)

So in this example:

  • You might pay the hospital deductible ($1,736)
  • That amount counts toward your total deductible

If you haven’t met the full $2,950 deductible yet, you may continue paying small amounts until you do.

After that? The plan kicks in. And just like Plan G, you’re at $0 out-of-pocket for the rest of the year.

What This Actually Means

Even in a large hospital scenario, your exposure is not unlimited. You are not responsible for the full $18,000 approved amount - Medicare is still covering the majority.

Your responsibility is:

  • Limited to Medicare’s gaps
  • Applied toward a known, fixed deductible
  • And once that’s met, you’re fully covered

The Key Takeaway

With High Deductible Plan G, even a major event like a hospital stay follows a predictable structure.

You may feel more of the cost upfront, but:

  • It’s capped
  • It’s defined
  • And once you reach that threshold, your coverage looks exactly like Plan G

That’s a very different situation than being exposed to ongoing, unlimited costs.

Part B (Doctors / Outpatient) Cost Comparison

This is where things really start to click for people, because most of your day-to-day healthcare falls under Part B - doctor visits, specialists, imaging, lab work, and outpatient procedures.

And this is also where the biggest misconception shows up. People hear “high deductible” and assume they’re paying the full cost of everything. You’re not. You’re only responsible for the 20% that Medicare doesn’t cover.

Let’s walk through a couple real examples.

Example 1: Office Visit

  • Doctor charges: $200
  • Medicare-approved amount: $120

Medicare pays 80%:

  • $96

Remaining 20%:

  • $24

With Plan G:

  • You pay $0 (after Part B deductible is met)

With High Deductible Plan G:

  • You pay $24, and it applies toward your deductible

That’s it. Not $200. Not $120. Just the leftover portion.

Example 2: MRI or Outpatient Testing

  • Facility charges: $2,000
  • Medicare-approved amount: $1,200

Medicare pays 80%:

  • $960

Remaining 20%:

  • $240

With Plan G:

  • You pay $0

With High Deductible Plan G:

  • You pay $240, applied toward your deductible

What This Actually Shows

Even with larger outpatient services, the amount you’re responsible for is a fraction of the total bill. That’s because Medicare is still covering the majority.

So, instead of thinking: “I have to pay everything until I hit $2,950…” The more accurate way to think about it is: “I’m paying Medicare’s 20% share until I hit the deductible.”

This is what makes High Deductible Plan G far more manageable than it sounds.

Costs accumulate gradually, not all at once.

  • A few doctor visits = small amounts
  • Occasional testing = moderate amounts
  • It takes consistent usage to reach the full deductible

And if you don’t? You’ve kept the premium savings.

The Most Important Point: The Benefits Are IDENTICAL

This is where a lot of confusion - and bad advice - tends to come in.

High Deductible Plan G is often presented like it’s a “step down” from Plan G. It’s not. The benefits are identical by law.

That means:

  • Same exact coverage as Plan G
  • Same ability to see any doctor nationwide that accepts Medicare
  • Same protection against large, unexpected medical bills
  • Same standardized benefits - no differences between carriers

Nothing about your healthcare access changes. Nothing about what’s covered changes.

So What’s Actually Different?

There are only two real differences:

  • The monthly premium (much lower with High Deductible Plan G)
  • The annual deductible (you pay costs until it’s met)

That’s it. Everything else - the coverage, the flexibility, the protection - stays exactly the same.

Why This Matters

A lot of people assume they’re giving something up when they move away from standard Plan G. That assumption is what keeps them stuck paying higher premiums. But once you understand that the benefits are identical, the decision becomes much clearer.

You’re not choosing between “better” and “worse” coverage. You’re choosing between two different ways to pay for the same coverage.

Why People Are Considering Medicare Advantage (And Why That’s Risky)

At this point, a lot of people hit the same fork in the road. They see their Plan G premium go up again, they start looking for alternatives, and Medicare Advantage shows up front and center with a simple pitch: “$0 premium.”

On the surface, that’s hard to ignore. When you’ve been paying $180, $220, sometimes $250 a month, the idea of dropping that to zero feels like an easy win. And that’s exactly why so many people start leaning in that direction.

But this is where the decision can go sideways. Because that comparison is built on short-term thinking.

What Medicare Advantage Doesn’t Emphasize

Medicare Advantage isn’t structured like a Medicare Supplement plan. It’s a completely different system.

Instead of paying more upfront for flexibility and predictability, you’re moving into a plan where:

  • Your care is tied to a network of providers
  • Referrals are often required to see specialists
  • Prior authorizations are common for tests, procedures, and treatments

That changes the experience of using your coverage in a big way.

Where the Real Risk Shows Up

The bigger issue isn’t just how the plan works - it’s how it changes over time.

Medicare Advantage plans are annual contracts.

That means every year:

  • Networks can change
  • Doctors and hospitals can leave
  • Benefits and copays can shift
  • Coverage details can be adjusted

So what you signed up for this year may not look the same next year. And that creates uncertainty.

The Cost Side Most People Miss

The $0 premium is what gets the attention. But the real costs show up when you actually use the plan:

  • Copays for services
  • Coinsurance for procedures
  • Out-of-pocket maximums that can reach thousands per year

And unlike Medigap, those costs are not always predictable upfront.

The Bigger Concern: Getting Back Out

This is the part most people don’t think about until it’s too late. If you leave a Medicare Supplement plan and go into Medicare Advantage, coming back isn’t always simple.

In most states, you’ll have to go through medical underwriting to return to a Medigap plan.

That means:

  • You may be denied coverage
  • Or charged significantly more based on your health

So the decision isn’t always reversible.

What This Means for You

It’s completely reasonable to question rising premiums. But switching to Medicare Advantage just to avoid those premiums can create a different set of problems - especially if you value flexibility, consistency, and control.

That’s why this conversation matters. Because there’s a middle ground.

You don’t have to choose between:

  • Paying high Plan G premiums
  • Or giving up flexibility entirely

The Bottom Line

Medicare Advantage solves the monthly premium problem, but often introduces access, stability, and cost uncertainty in return.

Before making that switch, it’s worth asking: are you solving the right problem - or just reacting to the price?

Why High Deductible Plan G Is the Smarter Alternative

If the only reason you’re reconsidering Plan G is the cost, then the real question isn’t “Medicare Advantage vs Medigap.”

It’s whether there’s a way to lower your costs without giving up what makes Medigap valuable in the first place. That’s exactly where High Deductible Plan G fits.

Instead of switching systems entirely, you’re simply adjusting how you pay within the same system - keeping the flexibility and stability, while reducing the monthly burden.

High Deductible Plan G vs Medicare Advantage
Key differences in access, flexibility, and long-term stability
Feature High Deductible Plan G Medicare Advantage
Networks No network — see any Medicare provider Limited to plan network
Prior Authorizations Not required Often required
Stability Very stable — benefits don’t change Can change annually
Nationwide Access Yes Limited by plan/network
Cost Predictability High after deductible is met Variable copays and out-of-pocket costs
Referrals Not required Often required

What This Actually Means

Medicare Advantage lowers your premium by changing how you access care. High Deductible Plan G lowers your premium by changing when you pay for care.

That’s a big difference.

With High Deductible Plan G:

  • You keep full control over your doctors and hospitals
  • You avoid administrative hurdles like approvals and referrals
  • You maintain consistent coverage year after year

You’re solving the cost issue without introducing new restrictions.

The Real Trade-Off

This really comes down to what you’re trying to fix.

If your concern is:

  • Rising premiums
  • Paying for coverage you don’t always use

Then High Deductible Plan G addresses that directly.

If you switch to Medicare Advantage, you may reduce your premium - but you’re also changing how your care is managed, and adding layers of complexity that weren’t there before.

State-by-State Cost Comparison

This is where the difference between Plan G and High Deductible Plan G really becomes hard to ignore. Premium gaps aren’t small - and when you stretch them out over time, the numbers add up quickly.

Here’s a realistic look at how these plans compare across some of the most populated states:

Plan G vs High Deductible G: Real Savings by State
How much you could save by switching to High Deductible Plan G
State Plan G HDG Monthly Savings 5-Year Savings
California $180 $65 $115 $6,900
Texas $170 $57 $113 $6,780
Florida $255 $80 $175 $10,500
New York $450 $100 $350 $21,000
Pennsylvania $200 $65 $135 $8,100
Illinois $170 $60 $110 $6,600
Ohio $170 $50 $120 $7,200
Georgia $195 $60 $135 $8,100
North Carolina $170 $55 $115 $6,900
Michigan $185 $75 $110 $6,600
In many states, switching to High Deductible Plan G can save $6,000–$20,000+ over time.

What This Shows

Across all of these states, the pattern is consistent:

  • Monthly savings typically fall between $110 and $350
  • Annual savings range from about $1,300 to over $4,000
  • Over 5 years, that becomes $6,000 to $20,000+

And remember - this isn’t from switching to a different type of coverage. This is the same coverage, just structured differently.

Average Difference Across States

Looking at these markets as a whole:

  • Average monthly savings: $140–$180
  • Average annual savings: $1,500–$2,200
  • 5-year savings: typically $7,500–$11,000+

In higher-cost states like New York and Florida, those numbers climb even faster.

Why This Matters Long-Term

This is the part most people don’t think about.

When you stay in Plan G, you’re committing to:

  • Higher premiums today
  • And likely higher premiums in the future

When you shift to High Deductible Plan G, you’re:

  • Reducing your fixed monthly cost
  • Keeping more money in your control
  • And limiting your exposure to ongoing rate increases

Over time, that difference compounds.

Total Cost Comparison: How to Actually Think About This

This is the part that brings everything together. Because at the end of the day, this decision isn’t about premiums alone - it’s about total cost over time.

And there’s a simple way to think about it.

The Basic Formula

Standard Plan G Total Cost: Monthly Premium × 12 × Number of Years

You’re paying this no matter what - whether you use the plan or not.

High Deductible Plan G Total Cost: (Monthly Premium × 12 × Number of Years) + Deductible (only if you use it)

The key difference? The deductible is not guaranteed. It only comes into play if your usage is high enough.

Simple Example

Let’s use clean numbers to make this real.

  • Plan G: $200/month = $2,400/year
  • High Deductible G: $60/month = $720/year

Annual difference: you’re saving $1,680 per year with High Deductible Plan G.

“What If I Hit the Deductible?”

This is the question everyone asks - and it’s the right one.

Let’s say you do have a higher-usage year and hit the full deductible ($2,950).

  • High Deductible Plan G total that year: $720 (premium) + $2,950 (deductible) = $3,670
  • Plan G total that year: $2,400

So yes - in that one year, High Deductible Plan G costs more. But that’s not the full picture.

What Happens Over Time

Now zoom out. If you’re saving $1,680 per year, it doesn’t take long for those savings to add up.

Over 5 years:

  • Plan G: $12,000 in premiums
  • High Deductible G: $3,600 in premiums

That’s $8,400 in savings before even factoring in usage.

So even if you hit the deductible once or twice during that time, you’re often still ahead overall.

The Key Insight Most People Miss

You don’t need to avoid the deductible completely. You just need to not hit it every single year.

That’s the entire strategy.

If you:

  • Have low to moderate usage most years
  • Only occasionally have higher-cost years

Then High Deductible Plan G often comes out ahead - sometimes by a wide margin.

Strategy: Setting Aside the Deductible (How to Make This Work in Real Life)

This is the part that separates people who feel comfortable with High Deductible Plan G…from people who actually use it effectively.

The idea is simple: if you’re saving money every month, don’t just spend it - redirect it.

A Simple Way to Do It

Let’s say you switch from Plan G to High Deductible Plan G and save about $140 per month.

Instead of letting that disappear into your normal spending, set aside a portion of it.

For example:

  • Save $100/month
  • That’s $1,200 per year

Now you’re actively building a cushion toward the deductible.

Why This Changes Everything

This is where High Deductible Plan G starts to feel very different.

Instead of thinking: “What if I have to pay $2,950?”

You’re thinking: “I’ve already set aside a large portion of that if I need it.”

You’re essentially self-insuring the gap. And you’re doing it with money that would have gone to higher premiums anyway.

The Bigger Advantage

Even if you never use that money for healthcare, it’s still yours. That’s the key difference.

With Plan G:

  • You pay higher premiums
  • That money is gone whether you use the plan or not

With High Deductible Plan G:

  • You keep more of your money
  • You decide how to use it
  • You build a reserve over time

That creates a level of financial control that most people don’t have with traditional plans.

Long-Term Perspective

Over a few years, this strategy can completely change the math.

  • Year 1: $1,200 saved
  • Year 3: $3,600 saved
  • Year 5: $6,000+ saved

Now you’re not just covering a deductible - you’re building a buffer. And even if you do have a high-cost year, you’re using money that you’ve already set aside from your savings.

The Bottom Line

High Deductible Plan G works best when it’s paired with a simple strategy: save part of what you’re not spending.

That’s how you turn lower premiums into long-term financial control - instead of just short-term savings.

Who High Deductible Plan G Is Best For

High Deductible Plan G isn’t for everyone - but for the right person, it can be one of the most efficient ways to structure Medicare coverage.

The key is understanding whether your situation lines up with how the plan is designed.

It’s a Strong Fit If…

You’re relatively healthy: if you’re not going to the doctor constantly or dealing with ongoing treatments, you’re less likely to hit the deductible in most years - which is where the savings really show up.

You want to lower your fixed monthly costs: if Plan G premiums are starting to feel too high, this is one of the only ways to significantly reduce that monthly expense without giving up coverage.

You’re comfortable with some variability: this plan works best if you understand that some years may cost more than others - but over time, the structure tends to favor you if your usage is moderate.

You’re frustrated with rising Plan G premiums: this is one of the most common reasons people switch. Not because they want less coverage - but because they want a smarter way to pay for it.

Who It May Not Be Ideal For

It may not be the best fit if:

  • You use healthcare very frequently
  • You prefer completely predictable, fixed costs
  • You’re uncomfortable with any upfront exposure

In those cases, the simplicity of Plan G may still be worth the higher premium.

Final Thoughts: Making the Right Choice for You

By now, you can probably see that this decision isn’t as simple as choosing between Plan G and High Deductible Plan G. It really comes down to how you want to structure your healthcare costs moving forward.

And the truth is, there isn’t a one-size-fits-all answer. Pricing can vary quite a bit depending on your ZIP code, your age, gender, and even the specific insurance carrier. Two people in different areas can be looking at very different numbers for the exact same plan.

What most people actually need isn’t more general information - it’s clarity around their own situation. Seeing averages and ranges only goes so far. What really helps is understanding your actual costs. That’s when the decision starts to make sense, because you can clearly see what Plan G would cost you today and over time, how High Deductible Plan G compares side-by-side, and how your expected usage impacts which option is more efficient.

When we run a comparison, we don’t just pull quotes and leave it at that. We look at your current premiums (or what you’ve been quoted), how often you realistically expect to use care, and how comfortable you are with risk versus predictability.

From there, we build out a simple projection so you can see how each option plays out over time - not just this year, but several years down the road.

The goal isn’t to push you toward one plan or the other. It’s to help you choose a structure that makes sense financially, fits how you actually use healthcare, and still holds up five to ten years from now.

If you want to see what this looks like for you, we can run a personalized comparison showing exactly how Plan G and High Deductible Plan G stack up based on your location and situation. That includes real quotes from top carriers, a side-by-side cost breakdown, a long-term projection, and a recommendation based on your risk tolerance.

Once you see your actual numbers, the right decision usually becomes pretty obvious.

FAQ

Yes. High Deductible Plan G provides the exact same coverage as standard Plan G after the deductible is met. The only difference is when you pay, not what is covered.

The deductible is $2,950 in 2026 (adjusted annually). You pay Medicare’s portion of costs until that amount is reached, then the plan pays 100% of covered services.

No. Medicare still pays first. You are only responsible for the remaining portion (typically around 20%), not the full billed amount.

Yes, in many cases. Because premiums are significantly lower, you can save $1,000–$2,000+ per year. Even if you hit the deductible occasionally, many people still come out ahead over time.

For many people, yes. It allows you to keep full provider freedom, avoid networks and prior authorizations, and maintain stable coverage - while still lowering your monthly premium compared to standard Plan G.

Matt Kiggins
Matt Kiggins
Senior Editor
SimpleAdvisor.com

For over 15 years, Matt Kiggins has been the senior editor at Simple Advisor, giving detailed advice on Medicare, life insurance, and dental coverage to thousands of clients in more than forty states. His demonstrated expertise in assisting people with their health plan selection is remarkable — it’s evident that he stands out among competitors as the go-to source for knowledge and support.

Matt holds a resident 2–15 Florida Health & Life (Including Annuities & Variable Contracts) Agent License in Florida, his state license number is P116762 (Issued 10/1/2007).

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Matt Kiggins
Matt Kiggins
Senior Editor
SimpleAdvisor.com
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