Medicare Supplement · Plan G Guide

Medicare Plan G Explained

Medicare Supplement Plan G is one of the most comprehensive Medigap plans available to people new to Medicare. It helps pay many of the out-of-pocket costs left by Original Medicare — but it does not cover everything.

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Plan G at a Glance

  • Covers most Medicare-approved Part A and Part B cost-sharing
  • Covers Part B excess charges — Plan N does not
  • No provider networks — use any Medicare-accepting doctor
  • Requires a separate Part D plan for prescriptions
One out-of-pocket cost: The Medicare Part B deductible — $283 in 2026. After you pay that once per year, Plan G covers the remaining Medicare-approved cost-sharing.

Quick Answer

Medicare Supplement Plan G helps pay most of the Medicare-approved costs that Original Medicare leaves behind. In 2026, you still pay the Medicare Part B deductible yourself — which is $283. After that, Plan G generally pays the remaining Medicare-approved Part A and Part B cost-sharing. Plan G does not include prescription drug coverage, dental, vision, hearing, or long-term care.

What is Medicare Supplement Plan G?

Medicare Supplement Plan G, also called Medigap Plan G, is a standardized supplemental insurance policy that works alongside Original Medicare (Part A and Part B) to help cover out-of-pocket costs that Medicare does not fully pay.

Plan G is sold by private insurance companies and approved by Medicare. The benefits of Plan G are standardized, meaning the coverage is the same regardless of which company sells it. What differs between companies is the monthly premium, the rate history, and any household discounts or underwriting practices.

Plan G is currently one of the most comprehensive Medicare Supplement plans available to people newly enrolling in Medicare. It covers nearly everything Original Medicare leaves behind — with one exception: the Medicare Part B deductible.

Is it Plan G or Part G?

It is Medicare Supplement Plan G, not Medicare Part G. Medicare “Parts” refer to the Medicare program itself (Part A, Part B, Part C, and Part D). Medigap plans are standardized by letters — Plan G, Plan N, Plan K — and are separate from Medicare Parts.

How Plan G works

Original Medicare pays its approved share first. Then Plan G pays the remaining Medicare-approved Part A and Part B cost-sharing — after you have paid the Part B deductible for the year. You generally do not deal with claim forms; providers bill Medicare and then Plan G directly.

You receive a Medicare-covered service
Original Medicare processes the claim and pays its approved share
Plan G pays the remaining Medicare-approved cost-sharing (after the Part B deductible)
For most Medicare-approved services, your out-of-pocket cost is $0 after the deductible

What does Plan G cover?

Plan G covers a broad set of Medicare-approved cost-sharing items. The table below shows what Plan G covers and a plain-English explanation of each benefit.

Medicare cost Plan G covers it? Plain-English explanation
Part A hospital coinsurance and costs up to 365 days after Medicare benefits are exhausted Yes Hospital stays can be expensive. Plan G covers your share of hospital costs while you are admitted.
Part A deductible Yes The Part A hospital deductible is $1,676 per benefit period in 2026. Plan G pays this for you.
Part A hospice care coinsurance and copayments Yes Covers the small copays for hospice-related prescription drugs and inpatient respite care.
Skilled nursing facility coinsurance Yes After a qualifying hospital stay, Medicare covers skilled nursing facility care but charges daily coinsurance. Plan G covers that coinsurance.
First 3 pints of blood Yes Medicare does not pay for the first three pints of blood used in a procedure. Plan G covers this cost.
Part B coinsurance and copayments Yes After the Part B deductible, Medicare pays 80% of approved outpatient costs. Plan G pays the remaining 20%.
Part B excess charges Yes Some providers charge more than Medicare’s approved amount. Plan G covers those excess charges. Plan N does not.
Foreign travel emergency (up to plan limits) Yes Covers 80% of medically necessary emergency care outside the U.S., after a $250 deductible, up to a $50,000 lifetime limit.
Medicare Part B deductible No This is the one cost Plan G does not cover. You pay the $283 Part B deductible yourself in 2026.

What does Plan G not cover?

Plan G is comprehensive, but it does not cover everything. The items below are not part of the Medigap Plan G benefit design and require separate plans or out-of-pocket payment.

ItemWhy it is not covered
Medicare Part B deductible ($283 in 2026)Federal law no longer allows Medigap plans sold after January 1, 2020 to cover the Part B deductible for new Medicare enrollees.
Prescription drugsMedigap plans do not include drug coverage. You need a separate Medicare Part D plan.
Routine dental careOriginal Medicare does not cover routine dental. Plan G follows Medicare’s coverage rules.
Routine vision exams and eyewearRoutine vision is not covered by Original Medicare or Plan G. Some Medicare Advantage plans include vision extras.
Hearing aids and examsOriginal Medicare does not cover routine hearing. Plan G does not either.
Long-term custodial careCustodial care (help with daily activities in a nursing home or at home) is not a Medicare-covered service.
Private-duty nursingNot a covered Medicare service and therefore not covered by Plan G.
Non-Medicare-approved servicesPlan G only covers cost-sharing for services Medicare approves. If Medicare denies a claim, Plan G generally does not pay.

Not sure whether Plan G, Plan N, or Medicare Advantage fits better? The Medicare Quiz takes about 2 minutes.

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No drug coverage with Plan G

If you choose Plan G, you must enroll in a separate Medicare Part D prescription drug plan. If you skip Part D and go 63 or more days without creditable drug coverage, you may owe a permanent Part D late enrollment penalty.

Most people with Plan G pair it with a standalone Part D plan. The combined monthly cost is still predictable, and many prefer this to the copay and network structure of Medicare Advantage.

What do you pay with Plan G in 2026?

The Part B deductible

Your only significant out-of-pocket cost under Plan G is the Medicare Part B deductible. In 2026, that is $283. You pay this once per calendar year before Plan G begins covering Part B cost-sharing. After you meet it, Plan G generally picks up the remaining Medicare-approved Part B cost-sharing for the rest of the year.

After the deductible is met

Once you have paid the $283 Part B deductible, Plan G generally covers the remaining Medicare-approved cost-sharing for covered services. For most Medicare-approved outpatient services, your out-of-pocket cost after meeting the deductible is $0.

Example: Specialist visit with Plan G (after deductible)

You see a specialist for a Medicare-covered visit. Original Medicare approves the service.

Medicare pays: 80% of the Medicare-approved amount.

Plan G pays: The remaining 20% Medicare-approved coinsurance.

Your cost: $0 for that visit (because you already paid your $283 deductible earlier in the year).

2026 Plan G cost reference

Part B deductible: $283 (you pay once per year)
Part A deductible: $1,676 per benefit period (Plan G pays)
Skilled nursing facility coinsurance, days 21–100: $209.50/day in 2026 (Plan G pays)
Part B coinsurance: 20% after deductible (Plan G pays)
Part B excess charges: Covered by Plan G
Monthly Plan G premium: Varies by company, age, location, and underwriting

Source: CMS 2026 Medicare costs. Values subject to annual update.

Important: monthly premium is not standardized

The benefits of Plan G are standardized by letter — every Plan G covers the same things. But the monthly premium is set by each insurance company and varies based on your age, ZIP code, gender, tobacco use, and the company’s pricing method. Comparing Plan G premiums across carriers is worthwhile before enrolling.

What is High-Deductible Plan G?

High-Deductible Plan G (HD-G) is a version of Plan G with a much lower monthly premium but a high deductible you must meet before the plan begins paying. In 2026, the High-Deductible Plan G deductible is $2,870.

Until you reach that $2,870 threshold, you pay Medicare-approved cost-sharing out of pocket. Once you hit it, HD-G covers the same benefits as standard Plan G for the rest of the year.

High-Deductible Plan G can make sense for people who are generally healthy, want the lowest possible monthly premium, and are comfortable taking on more front-end financial risk. It is not the right fit for people who expect significant medical costs or who prefer predictable expenses.

Standard Plan G

Higher monthly premium. You pay only the $283 Part B deductible per year, then Plan G covers the remaining Medicare-approved cost-sharing. More predictable for people with ongoing medical needs.

High-Deductible Plan G

Lower monthly premium. You pay the first $2,870 in Medicare-approved cost-sharing per year before the plan kicks in. May save money if you are rarely hospitalized or have minimal Medicare claims.

Plan G vs Plan N

Plan G and Plan N are two of the most popular Medicare Supplement plans for new Medicare enrollees. Both cover most Medicare-approved cost-sharing, but there are key differences that affect the right fit depending on how you use Medicare.

Feature Plan G Plan N Why it matters
Part B deductible Not covered Not covered Both require you to pay the $283 deductible yourself in 2026.
Part B excess charges Covered Not covered This is the key difference. If your provider charges more than Medicare’s approved amount, Plan G pays the difference. Plan N leaves you responsible.
Office visit copays None Up to $20 Plan N may charge up to a $20 copay per office visit after the deductible. Plan G has no copay.
Emergency room copay (non-admitted) None Up to $50 Plan N may charge a $50 ER copay if you are not admitted. The copay is waived if you are admitted to the hospital.
Monthly premium Generally higher Generally lower Plan N’s lower premium reflects its slightly higher out-of-pocket exposure. The savings may or may not offset the copays and excess charge exposure depending on how often you use Medicare.
Cost predictability Higher Moderate Plan G leaves you with only the Part B deductible. Plan N adds possible copays and excess charges.
May fit best if… You want maximum predictability and your providers charge excess charges You want a lower premium and your providers accept Medicare assignment Check whether your doctors charge excess charges before choosing Plan N.

Want help comparing Plan G and Plan N in your ZIP code? A licensed Medicare agent can check what’s available and what your doctors charge.

Schedule a Medicare Review

Plan G vs Medicare Advantage

Plan G with Original Medicare and Medicare Advantage are two fundamentally different ways to receive your Medicare benefits. The right choice depends on your priorities, not just cost.

Question Plan G with Original Medicare Medicare Advantage
Can I use any doctor that accepts Medicare? Yes — nationwide Usually no — local network applies in most cases
Do I need referrals to see a specialist? Generally no Depends on the plan; many HMO plans require referrals
Are there provider networks? No network — use any Medicare provider Yes — HMO or PPO networks vary by plan and ZIP code
Do I need a separate Part D drug plan? Yes — standalone Part D plan required Usually no — drug coverage often included
Are monthly premiums usually higher? Yes — Medigap premiums can be significant Often lower or $0 premium options available
Are out-of-pocket medical costs more predictable? Generally yes — after the Part B deductible, most costs are covered Varies — copays and out-of-pocket maximums apply
Does it include extras like dental, vision, or OTC benefits? No — Plan G does not include these extras Many plans include dental, vision, hearing, and OTC allowances
Can I switch later without underwriting? Enrolled during guaranteed issue: generally yes.
Enrolling later: underwriting likely applies in most states
Can switch plans during Annual Enrollment, but switching back to Medigap may require underwriting

There is no universal right answer. The best fit depends on your doctors, prescriptions, how often you travel, your comfort with networks and copays, and your budget for premiums vs out-of-pocket costs. A licensed agent can walk through both paths clearly.

Plan G is simple once someone explains it: Original Medicare pays first, Plan G fills most of the remaining gaps, and you pay the Part B deductible yourself.

Plan G benefits are standardized by letter. The monthly premium is not. Comparing carriers matters before you enroll.

The real decision is whether the predictability of Plan G is worth the premium compared with Plan N or Medicare Advantage.

Who Plan G may fit — and who it may not

Plan G can be a strong fit for many Medicare beneficiaries, but it is not right for everyone. Understanding both sides helps you make a more confident decision.

Plan G may fit if…

  • You want predictable medical costs with minimal surprises after meeting the Part B deductible
  • You want the freedom to see any provider nationwide who accepts Medicare
  • You travel often or split time between states
  • You do not want to deal with network restrictions, referrals, or prior authorizations
  • You are comfortable paying a higher monthly premium for lower back-end medical costs
  • Your providers charge Medicare excess charges
  • You are enrolling during a guaranteed issue period when underwriting does not apply

Plan G may not fit if…

  • You want the lowest possible monthly premium
  • You want built-in dental, vision, hearing, or OTC card benefits
  • You prefer an all-in-one plan that includes prescription drug coverage
  • You are comfortable using a local provider network and want lower premiums in return
  • You cannot comfortably afford the monthly Medigap premium plus a separate Part D plan
  • Your health history may make it difficult to pass underwriting outside a guaranteed issue window

When should you buy Plan G?

The best time to buy Plan G is during your Medicare Supplement Open Enrollment Period, which begins the month you turn 65 and are enrolled in Medicare Part B. During this 6-month window, insurance companies cannot deny you Plan G, charge you more due to health conditions, or impose a waiting period for pre-existing conditions. This is called a guaranteed issue right.

Outside of this window, most states allow insurers to use medical underwriting for Medicare Supplement plans. That means they can deny you coverage or charge you a higher premium based on your health history.

Do not wait to compare

Your Medigap Open Enrollment Period lasts only 6 months and does not repeat. Once it passes, switching to Plan G may require underwriting in most states. Compare your options before this window closes.

Other guaranteed issue situations

You may also have a guaranteed issue right to buy a Medicare Supplement plan without underwriting in these situations:

Your Medicare Advantage plan leaves the service area or stops operating
You have a Medicare Advantage trial right as a new Medicare enrollee (within the first 12 months)
Your employer retiree coverage that supplements Medicare ends
You enroll in Medicare Part B at 65 or older (special circumstances apply)

Can you switch to Plan G later?

You can apply for Plan G at any time, but outside of guaranteed issue periods, insurance companies in most states can use medical underwriting. That means they can decline your application or charge you more based on health conditions. Pennsylvania and some other states have additional Medigap protections, such as birthday rules or anniversary rules, that may allow you to switch with more flexibility.

If you are currently on Medicare Advantage and considering a switch to Plan G, be aware that in most states you will face underwriting. The exception is the Medicare Advantage trial right period: new Medicare enrollees who try Medicare Advantage within their first 12 months may have a one-time guaranteed right to switch to a Medicare Supplement plan.

Worried about losing coverage or want to explore switching? A licensed agent can review your specific situation and state protections.

Schedule a Medicare Review

How to compare Plan G companies

Because Plan G benefits are standardized, the coverage is identical from one company to the next. What differs is the monthly premium, the company’s rate history, and any household discounts or underwriting practices.

Comparing Plan G is not just asking “What does Plan G cover?” It is also asking “Which company’s Plan G makes sense for me now, and what could the rate history look like later?”

Things to compare across carriers

  • Current monthly premium for your age, ZIP code, and gender
  • Rate increase history over the past 3–5 years
  • Whether the company uses attained-age, issue-age, or community rating
  • Household discounts for couples or multi-policy holders
  • Any underwriting requirements and health questions asked
  • Financial strength and complaint ratios if available

See if Plan G fits your situation

Plan G can be a strong fit, but the right choice depends on your doctors, prescriptions, budget, travel habits, and enrollment timing. A licensed Lehigh Partners agent can compare Plan G options available in your area and walk through the trade-offs clearly.

Medicare Plan G frequently asked questions

Medicare Supplement Plan G covers Medicare Part A hospital coinsurance and hospital costs, Part A deductible ($1,676 per benefit period in 2026), Part A hospice coinsurance and copayments, skilled nursing facility coinsurance, the first three pints of blood, Part B coinsurance and copayments, Part B excess charges, and foreign travel emergency care up to plan limits. Plan G does not cover the Medicare Part B deductible, which is $283 in 2026.
Plan G does not cover the Medicare Part B deductible ($283 in 2026), prescription drugs, routine dental care, routine vision exams or eyewear, hearing aids or exams, long-term custodial care, private-duty nursing, or services Medicare does not approve. For prescriptions, you need a separate Part D plan.
No. Medicare Plan G is a Medicare Supplement (Medigap) plan — not a Medicare Part. Medicare Parts refer to parts of the Medicare program itself: Part A (hospital), Part B (medical), Part C (Medicare Advantage), and Part D (prescription drugs). Medigap plans are standardized by letters such as Plan G, Plan N, and Plan K and are sold by private insurance companies.
Plan G does not have its own deductible. However, you must pay the Medicare Part B deductible out of pocket before Plan G begins covering Part B cost-sharing. The Part B deductible is $283 in 2026. After you pay this once per calendar year, Plan G generally covers the remaining Medicare-approved Part A and Part B cost-sharing for the rest of the year.
No. Medicare Supplement Plan G does not include prescription drug coverage. If you choose Plan G, you need to enroll in a separate Medicare Part D prescription drug plan. If you skip Part D and go 63 or more days without creditable drug coverage, you may owe a permanent late enrollment penalty when you eventually do enroll.
Plan G does not have its own provider networks. You can use it at any doctor, specialist, or hospital that accepts Medicare — anywhere in the United States. This is one of the main reasons people choose Medicare Supplement plans over Medicare Advantage, which typically restricts you to a local network.
Plan G and Plan N are both strong options. Plan G covers Part B excess charges; Plan N generally does not. Plan N may require copays of up to $20 per office visit and up to $50 for ER visits, while Plan G does not. Plan G typically has a higher monthly premium. Plan G may be a better fit if your providers charge excess charges or if you want the most predictable costs. Plan N may save money if your providers accept Medicare assignment and you do not expect frequent office visits.
Plan G and Medicare Advantage serve different needs and neither is universally better. Plan G offers no network restrictions, more predictable out-of-pocket costs, and nationwide provider access — at a higher monthly premium. Medicare Advantage often has lower premiums and includes extras like dental, vision, and OTC benefits, but uses local networks and may require prior authorizations. The right choice depends on your doctors, prescriptions, budget, travel habits, and how you prefer to manage healthcare costs.
Outside of guaranteed issue periods, insurance companies in most states can use medical underwriting for Medicare Supplement plans, which means they can deny coverage or charge higher premiums based on health history. Guaranteed issue rights protect you from denial in certain situations, such as during your Medicare Supplement Open Enrollment Period (the 6 months when you first enroll in Part B at 65) or when you lose Medicare Advantage coverage under certain conditions. Enrolling during a guaranteed issue period is important if you want Plan G without health-based underwriting.
You may be able to switch from Medicare Advantage to Plan G, but in most states you will face medical underwriting and could be denied or charged more based on health conditions. The Medicare Advantage trial right period provides a guaranteed right to switch during your first 12 months of Medicare Advantage. Pennsylvania and some other states have additional Medigap protections. Talk with a licensed Medicare agent before attempting this switch.

Want to see if Plan G fits your situation?

Plan G can be a strong fit, but the right choice depends on your doctors, prescriptions, budget, travel habits, and enrollment timing. A licensed Lehigh Partners Senior Benefits agent can compare Plan G and other Medicare options available in your area.

No pressure. No obligation. Just clear Medicare guidance from a licensed agent.