Medigap can address Mrs. Georgia's concern because a standardized Medigap plan pays some or all of Original Medicare's cost-sharing — but only if she enrolls during her six-month Medigap open enrollment period, which starts the month she is 65 or older and enrolled in Medicare Part B. Outside that window, insurers in most states can medically underwrite her, and a history of health problems can mean a denial or a higher premium. The deductible itself is not erased by joining a Medigap plan; it is erased only by choosing a plan whose benefits cover it. Plan G, for example, pays the Part A deductible and the Part B coinsurance but not the Part B deductible, while Plan F pays both — and Plan F is closed to anyone who became eligible for Medicare on or after January 1, 2020.
What Original Medicare Actually Leaves Mrs. Georgia Paying
Original Medicare is fee-for-service coverage split into Part A for hospital care and Part B for outpatient and medical care, and each part carries its own cost-sharing. In 2026, the Part A deductible is $1,736 per benefit period, according to the Centers for Medicare & Medicaid Services. That is not an annual deductible. A benefit period begins when she is admitted as an inpatient and ends after 60 consecutive days without inpatient hospital or skilled nursing facility care, so a second hospitalization later in the same year triggers the deductible again.
Part B works differently. CMS sets the 2026 Part B deductible at $283 per year, and after she meets it she generally pays 20 percent of the Medicare-approved amount for covered services with no annual out-of-pocket cap. That 20 percent is the number that worries most people, because it has no ceiling. A single expensive course of treatment can produce a coinsurance bill in the thousands, and Original Medicare alone will not stop the bleeding at any threshold.
Part A also charges daily coinsurance for long stays. For 2026, CMS lists $0 per day for days 1 through 60 of an inpatient stay, $458 per day for days 61 through 90, and $1,146 per day for each lifetime reserve day beyond day 90. Those figures matter because a Medigap plan that covers the Part A deductible typically covers this daily coinsurance too, which is where the real financial exposure sits for a prolonged hospital stay.
The Part B deductible is small and predictable; the 20 percent coinsurance is neither. That distinction should drive Mrs. Georgia's plan choice more than the headline deductible does. A plan that leaves her paying $283 up front but covers the 20 percent is usually a better defense than one that covers the deductible but leaves a percentage of every expensive service on her side of the ledger. Medigap plans are sold by private insurers but standardized by federal and state rules, so the letter on the policy means the same benefits regardless of which company issues it.
The Ten Standardized Medigap Plans and What Each One Covers
Medigap policies come in ten standardized letter plans — A, B, C, D, F, G, K, L, M, and N — and the benefits inside each letter are identical across insurers in most states, according to Medicare.gov. That standardization is the single most useful fact for Mrs. Georgia, because it means she can shop on price and insurer stability rather than decode benefit differences. Massachusetts, Minnesota, and Wisconsin waive the standard letters and use their own plan structures, so a resident of one of those three states should confirm the local options before comparing premiums.
| Medigap Plan | Part A Deductible | Part B Deductible | Part B Coinsurance | Part A Daily Coinsurance (Days 61–90) | Foreign Travel Emergency |
|---|---|---|---|---|---|
| Plan A | No | No | Yes | No | No |
| Plan B | Yes | No | Yes | No | No |
| Plan C (closed to new enrollees) | Yes | Yes | Yes | Yes | Yes |
| Plan F (closed to new enrollees) | Yes | Yes | Yes | Yes | Yes |
| Plan G | Yes | No | Yes | Yes | Yes |
| Plan K | 50% | No | 50% | 50% | 50% |
| Plan L | 75% | No | 75% | 75% | 75% |
| Plan M | 50% | No | Yes | Yes | Yes |
| Plan N | Yes | No | Yes, with copays up to $20 for office visits and $50 for ER | Yes | Yes |
Plans C and F are the two that cover the Part B deductible, and both are closed to anyone who became eligible for Medicare on or after January 1, 2020, under the Medicare Access and CHIP Reauthorization Act. Mrs. Georgia can buy them only if she was already Medicare-eligible before that date. Everyone else chooses from the remaining letters, and Plan G is the most comprehensive option available to new enrollees because it covers everything Plan F did except the Part B deductible.
High-deductible versions of Plans F and G also exist. Under a high-deductible Plan G, the insurer pays nothing until she has paid a set deductible amount out of pocket, and CMS confirms that deductible is indexed annually. The trade-off is a much lower premium in exchange for bearing the first several thousand dollars of cost-sharing herself each year. For someone with low expected medical use, that can pencil out; for someone managing a chronic condition, it usually does not.
Plan N deserves a specific warning. It covers the Part B coinsurance but requires copayments of up to $20 for some office visits and up to $50 for emergency room visits that do not result in an admission. It also does not cover Part B excess charges — the amount a provider can bill above the Medicare-approved amount, capped at 15 percent above it. Mrs. Georgia should ask whether her specialists accept Medicare assignment before choosing Plan N, because excess charges are her responsibility under that letter.
How the Six-Month Medigap Open Enrollment Window Changes Everything
The Medigap open enrollment period is a one-time, six-month window that begins the first month Mrs. Georgia is 65 or older and enrolled in Medicare Part B, per Medicare.gov. During that window, an insurer cannot refuse to sell her a Medigap policy, cannot charge her more because of past or present health problems, and cannot make her wait for coverage to start because of a pre-existing condition. This is the only federally protected window of its kind, and it does not repeat.
Outside that window, the rules vary by state, and in most states insurers can use medical underwriting. That means a questionnaire, a review of prescription history, and sometimes a phone interview. A denial is possible, and so is a higher premium. Mrs. Georgia's concern about deductibles is a cost question, but her more urgent question is timing: if she is still inside those six months, she should act now, because the protections expire whether or not she uses them.
Some states extend the protections. Connecticut, Massachusetts, Maine, and New York are commonly cited as states that guarantee issue of Medigap policies regardless of health status, though the specifics differ by plan and circumstance. Mrs. Georgia should confirm her state's rules with her State Health Insurance Assistance Program, or SHIP, which offers free local counseling. SHIP counselors are funded to help with exactly this decision and do not sell insurance.
There are limited federal guaranteed-issue rights that can reopen enrollment later, and they are narrower than most people assume. They arise in specific situations, such as losing employer-based retiree coverage or moving out of a Medigap plan's service area. Voluntary disenrollment from a Medicare Advantage plan generally does not create a guaranteed-issue right in most states, which is why the initial window carries so much weight. If she lets it close and later wants to switch from Medicare Advantage to Medigap, she may face underwriting.
A Step-by-Step Path From Concern to a Signed Medigap Policy
If Mrs. Georgia has decided to explore Medigap, the sequence below is the order that avoids the costliest mistakes. It starts with confirming eligibility and ends with a policy in force before her Part B effective date if possible.
1: Confirm her Part B start date and her age-65 month. Her Medigap open enrollment period begins the first month she is both 65 or older and enrolled in Part B. Write both dates on a calendar and note the six-month end date. 2: List her doctors and their Medicare participation status. Ask each specialist whether they accept Medicare assignment. Under Plan N, excess charges from non-participating providers become her cost. 3: Call her State Health Insurance Assistance Program. SHIP counseling is free, state-run, and independent of insurers. Ask specifically about her state's guaranteed-issue rules and any birthday rules for switching. 4: Compare Plan G against Plan F where available, and against high-deductible G. If she was Medicare-eligible before January 1, 2020, Plan F is on the table; otherwise Plan G is the fullest option. Model high-deductible G only if her expected annual care is low. 5: Get quotes from at least three insurers for the same letter plan. Because benefits are standardized, the letter is the product and the company is the price. Ask each insurer how its premium has changed over the past five years. 6: Ask each insurer about medical underwriting and its household discount. Some insurers offer a discount when a spouse or partner also holds a policy. Confirm in writing whether underwriting applies based on her enrollment timing. 7: Apply and confirm the effective date. She should verify the policy will be effective no later than her Part B start date, so there is no gap in coverage.
If she misses the window or faces underwriting, the failure path is to work with her SHIP counselor on state-specific options and to consider whether a Medicare Advantage plan with an out-of-pocket maximum is a better fit for her situation. If she is declined by one insurer, she can apply to another, but repeated applications with the same health history tend to produce the same answer. The practical failure-handling step is to apply early inside the window rather than late, because an application in process when the window closes may still be protected.
What Medigap Costs Beyond the Premium
The premium is only part of the cost picture, and Mrs. Georgia should build a total annual cost estimate rather than compare premiums alone. Medigap premiums vary by age, sex, ZIP code, tobacco use, and the insurer's pricing method, so no single national figure applies. What she can do is compute her worst-case and typical-case totals using her own quotes, and that calculation is the one most shoppers skip.
There are three pricing methods insurers use, and they behave very differently over time. Community-rated premiums charge everyone in an area the same rate regardless of age. Issue-age-rated premiums are set based on her age at purchase and rise only with inflation and claims experience. Attained-age-rated premiums rise as she gets older, so the low quote at 65 can climb steeply by 80. She should ask each insurer which method it uses, because a cheap attained-age policy can become the expensive one a decade later.
Medigap premiums are not the only line item. She still pays the Part B premium, which CMS sets annually and which is deducted from Social Security benefits for most people. She also pays the Part B deductible if she chooses Plan G, N, or any letter other than F and C. A realistic annual estimate is her Medigap premium times twelve, plus the Part B premium times twelve, plus the Part B deductible if her plan does not cover it, plus any copays under Plan N or K.
Here is where the arithmetic becomes useful. If Plan G quotes at $150 per month and Plan N at $120 per month, the premium difference is $360 per year. Plan N leaves her the Part B deductible of $283 and possible copays of up to $20 per office visit and $50 per ER visit. A handful of specialist visits can erase the premium savings, and excess charges from a non-participating provider can erase it faster. The lower premium is not automatically the lower cost.
Why Plan G Is Usually the Default Answer, and When It Is Not
For most new Medicare enrollees who want the broadest protection, Plan G is the standard recommendation because it covers the Part A deductible, the Part A daily coinsurance, the Part B coinsurance, and 80 percent of foreign travel emergency costs up to the plan limits. The one gap is the $283 Part B deductible in 2026, which she pays once per year. That single gap is predictable and small compared with the uncapped 20 percent coinsurance, which is why Plan G tends to win on risk-adjusted cost.
Plan G is not the right answer for everyone. If Mrs. Georgia travels abroad frequently and wants the foreign travel emergency benefit, Plan G includes it, but she should confirm the lifetime maximum and the 80 percent share. If she has very low expected medical spending and a strong cash reserve, high-deductible Plan G can cut her premium substantially in exchange for paying the first several thousand dollars of her own cost-sharing. The deductible amount is indexed, so she should confirm the current figure with the insurer rather than rely on a remembered number.
Plan N can be the right choice for someone who is cost-conscious, sees few specialists, and has verified that her doctors accept Medicare assignment. The trade is copays and excess-charge exposure for a lower premium. Someone with frequent specialist visits, or a condition requiring care from providers who do not accept assignment, should generally avoid Plan N. The plan is not inferior; it is narrower.
Plan K and Plan L cover only a percentage of cost-sharing — 50 percent and 75 percent respectively — and they carry annual out-of-pocket limits. Those limits make them a middle path between Original Medicare alone and a full Medigap plan. Mrs. Georgia should ask what the current out-of-pocket limit is for each, because those figures are set annually and change.
Where Medigap Fits Alongside Medicare Advantage and Employer Retiree Coverage
Medigap is one of three main paths, and the comparison matters because Mrs. Georgia's concern about deductibles could also be answered by a Medicare Advantage plan. Medicare Advantage plans are privately administered alternatives to Original Medicare that typically include drug coverage and often cap out-of-pocket spending, but they use networks and prior authorization. Medigap works only with Original Medicare and does not include drug coverage, so she would need a separate Part D plan.
| Path | Monthly Premium Beyond Part B | Deductible and Coinsurance Exposure | Network Rules | Drug Coverage |
|---|---|---|---|---|
| Original Medicare alone | $0 | Part A deductible $1,736 per benefit period; Part B deductible $283; 20% coinsurance with no cap | None | Not included |
| Original Medicare plus Plan G | Medigap premium set by insurer | Part B deductible $283 only | None | Not included; needs Part D |
| Medicare Advantage | Typically a plan premium, sometimes $0 | Plan-specific copays with an annual out-of-pocket maximum | HMO or PPO networks; prior authorization common | Usually included |
Employer retiree coverage is a third route and can interact with Medigap in ways that surprise people. Some retiree plans already wrap around Original Medicare and cover cost-sharing, which makes a Medigap policy redundant and expensive. Others are Medicare Advantage plans sponsored by the former employer. Mrs. Georgia should read her retiree plan documents before buying Medigap, and she should ask her former employer's benefits office whether the retiree plan coordinates with Medigap or duplicates it.
The choice between Medigap and Medicare Advantage is not about which is better in the abstract. It is about whether she values predictable cost-sharing and no networks over lower premiums and bundled drug coverage. Someone who travels often, sees specialists across systems, or wants to avoid prior authorization tends to prefer Medigap. Someone who wants a low or zero premium and is comfortable inside a network tends to prefer Medicare Advantage.
The Pre-Existing Condition Rule and the 2026 Enrollment Trap
A pre-existing condition does not block Medigap coverage during the open enrollment window, but it can outside it, and the mechanics matter. During the six-month window, insurers cannot impose a waiting period for a pre-existing condition, per Medicare.gov. Outside the window, in states that permit underwriting, an insurer can decline coverage or charge more based on health history, and some insurers impose a waiting period before covering a condition.
The trap is that people often let the window close while they are healthy and then need to switch plans after a diagnosis. At that point, underwriting can lock them into their current plan even if the premium has risen sharply. Mrs. Georgia's best protection against future premium increases is not a particular plan but the ability to switch, and that ability is strongest inside the open enrollment period and in states with guaranteed-issue rules.
There is also a drug coverage interaction she should not overlook. Medigap does not cover prescription drugs. If she takes maintenance medications, she needs a standalone Part D plan, and the plan's formulary and premium should be part of her total cost calculation. Switching Medigap plans later does not affect her Part D enrollment, but letting Part D lapse can trigger a late enrollment penalty that follows her for life.
If she is declined for Medigap outside the window, her options narrow to Medicare Advantage, a state high-risk pool where one exists, or remaining on Original Medicare without supplemental coverage. That is why the failure path should be planned before the window closes, not after. A SHIP counselor can map the state-specific fallbacks, and the conversation costs nothing.
Questions to Ask Before Signing Anything
The questions below are the ones that separate a well-chosen policy from an expensive mistake. They are specific enough to ask an insurer or a SHIP counselor directly, and each one has a factual answer rather than an opinion.
What pricing method does this policy use — community-rated, issue-age-rated, or attained-age-rated — and how have this insurer's premiums changed over the past five years? Does this insurer offer a household discount, and what are the eligibility conditions? Is underwriting required in my situation, and if so, which health conditions are disqualifying? Does this plan cover Part B excess charges, and are my current specialists Medicare-participating? What is the effective date of coverage, and will it align with my Part B start date? Does the plan coordinate with my employer retiree coverage, or does it duplicate benefits I already have?
The answer to the first question is often the most consequential. An attained-age-rated policy that quotes low at 65 can cost substantially more by age 80 than an issue-age-rated policy that quoted higher at the start. She should ask for the insurer's rate history in writing rather than accept a verbal assurance.
Mrs. Georgia should also confirm whether her state has a birthday rule or annual switching window. A handful of states allow Medigap holders to switch to a different plan of equal or lesser benefit without underwriting during a designated period around their birthday. The rules are state-specific and change, so the SHIP counselor is the right source rather than a national summary.
FAQ
Does Medigap cover the Part B deductible in 2026?
Only Plans C and F cover the Part B deductible, and both are closed to anyone who became Medicare-eligible on or after January 1, 2020. For everyone else, the 2026 Part B deductible of $283 is paid out of pocket once per year, while Plans G, N, M, and the others cover the 20 percent coinsurance that follows it.
Can Mrs. Georgia be turned down for Medigap because of her health?
Yes, but not during her six-month Medigap open enrollment period. During that window, insurers must sell her any policy they offer and cannot charge more for health history. Outside it, in most states, they can underwrite and decline — though Connecticut, Massachusetts, Maine, and New York have broader guaranteed-issue protections that should be confirmed locally.
Is the Part A deductible charged once per year or once per hospital stay?
It is charged per benefit period, not per year, and the 2026 amount is $1,736. A benefit period ends after 60 consecutive days without inpatient hospital or skilled nursing care, so two separate hospitalizations months apart can mean paying the deductible twice. This is the single most misunderstood feature of Original Medicare cost-sharing.
Is Plan F still available to buy?
Plan F is closed to anyone who became eligible for Medicare on or after January 1, 2020, under the Medicare Access and CHIP Reauthorization Act. If Mrs. Georgia was already Medicare-eligible before that date, she may still be able to buy Plan F, which covers both the Part A and Part B deductibles. Otherwise, Plan G is the fullest available option.
How much does Medigap cost per month?
There is no single national premium because Medigap pricing varies by age, sex, ZIP code, tobacco use, insurer, and pricing method. The practical approach is to get quotes from at least three insurers for the same letter plan and compare total annual cost, not just premium. A SHIP counselor can help interpret the quotes at no charge.
Does Medigap cover prescription drugs?
No. Medigap policies do not include drug coverage, so Mrs. Georgia would need a standalone Part D plan alongside her Medigap policy. The Part D premium and formulary belong in her total cost calculation, and letting Part D lapse can trigger a late enrollment penalty that persists for life.
What happens if she misses the Medigap open enrollment window?
In most states, she would face medical underwriting, which can mean a denial or a higher premium based on health history. Limited federal guaranteed-issue rights exist for specific events such as losing retiree coverage or moving out of a plan's service area, but voluntary disenrollment from Medicare Advantage generally does not qualify. Her SHIP counselor can map the state-specific options.
Can she switch Medigap plans later without answering health questions?
In most states, switching after the open enrollment period requires underwriting unless a guaranteed-issue right applies. A few states have birthday rules or annual switching windows that allow a change without underwriting, and the terms differ by state. Confirming the local rule before the window closes is the safer sequence.
This article is general educational information about Medicare and Medigap and is not a diagnosis, treatment plan, legal opinion, or financial or insurance recommendation. Medigap availability, pricing, underwriting rules, and state protections change and differ by location and plan year, so Mrs. Georgia should confirm current figures with Medicare.gov, her State Health Insurance Assistance Program, and a licensed insurance professional in her state before enrolling. No outcome or savings is promised. If she is in immediate danger or crisis, she should contact local emergency services.