North Carolina law guarantees you a Medicare Supplement (Medigap) policy if you reached Medicare before 65 through disability, and federal law does not. North Carolina Medigap under 65 exists because state law fills that federal gap: the North Carolina Department of Insurance (NCDOI) says federal Medicare supplement regulations do not guarantee eligibility to people under 65, so North Carolina mandates that eligibility by statute instead. Under North Carolina General Statutes Section 58-54-45 (G.S. 58-54-45), a North Carolina insurer must sell you standardized Plan A, plus Plan D or G if it markets either of those letters to age-based buyers whose own Medicare eligibility began on or after January 1, 2020, when you apply within six months of your first month of Part B.

In This Guide

How Medigap Works in North Carolina

A Medigap policy is private insurance that pays the deductibles and coinsurance Original Medicare leaves on you, and it works only alongside Original Medicare. What a company must offer you in North Carolina before 65 is set by G.S. 58-54-45 rather than left to each company's own appetite for the risk. It is illegal to knowingly sell a Medigap policy to someone enrolled in a Medicare Advantage plan, unless that person is moving back to Original Medicare, and it is equally illegal, with limited exceptions, to knowingly sell one to someone who has Medicaid. That second limb reaches dual-eligible readers: if you have Medicaid as well as Medicare, tell the company so before you apply, and read the Medicare Savings Programs paragraph below before you buy a policy at all. A Medigap policy also covers one person, so a married couple needs two policies.

NCDOI regulates these policies, and North Carolina uses the federal standardized framework. The plans sold are lettered A through D, F, G, and K through N (Plans E, H, I, and J are no longer sold, though someone who already has one can generally keep it), and the benefits inside a letter are fixed by federal rule. For a North Carolina buyer under 65, that settles a question the statute leaves open: the Plan A one North Carolina insurer owes you is the same Plan A every other North Carolina insurer owes you, so no company can compete with another on what that guaranteed policy covers. What separates them is the price they quote, and whether that particular company markets Plan D or G to age-based buyers whose own Medicare eligibility began on or after January 1, 2020, since G.S. 58-54-45 attaches that condition to the richer letters.

The exposure a Medigap policy closes is concrete: after the annual Part B deductible of $283 in 2026, Original Medicare pays about 80% of the approved amount for most outpatient care and leaves you the other 20%, and Part A adds an inpatient hospital deductible of $1,736 per benefit period that can hit more than once in a year.

North Carolina Medigap Under 65: What the Statute Guarantees

G.S. 58-54-45 is more specific than any one-line summary of it, and the specifics decide whether someone who reached Medicare before 65 walks away with a policy.

Which plan letters you are guaranteed

Under G.S. 58-54-45(a1), for a person whose Medicare eligibility began on or after January 1, 2020, a North Carolina insurer must at least make standardized Plan A available to people eligible for Medicare by reason of disability before age 65, and also Plan D or G if that insurer markets either of those letters to age-based buyers, without regard to medical condition, claims experience, or health status.

NCDOI states the rule for consumers in flat form: individuals under 65 who qualify for Medicare are eligible to purchase a Medigap policy A, D, or G in North Carolina, effective January 1, 2020. Read together, G.S. 58-54-45 and NCDOI's consumer summary mean this: in North Carolina Plan A is unconditional, and the richer letters follow the insurer's own product line. If a company sells Plan G in North Carolina to age-based buyers who became eligible for Medicare on or after that date, it owes you Plan G too. For eligibility that began before January 1, 2020, G.S. 58-54-45(a) works the same way but names Plan A plus Plan C or F.

When your six-month window opens

North Carolina's under-65 guarantee runs on its own clock, not the birthday clock: to be eligible you must apply during the six-month period beginning with the first month you first enroll in Medicare Part B. Outside an open-enrollment window, North Carolina insurers may use medical underwriting, meaning they can review your health, charge more, or decline you.

Being guaranteed the policy is not the same as being covered from day one. NCDOI says that within an open enrollment period the insurance company may impose a pre-existing condition waiting period, but it cannot be longer than six months, and it reaches only a health condition diagnosed or treated in the six months before your Medicare supplement application. If you have prior creditable coverage, the waiting period must be waived. Creditable coverage here means you were covered by insurance or Medicaid for the six months before the Medicare supplement policy's effective date. That waiver is the reason not to drop the coverage you have while you wait for the new policy to take effect.

One provision matters for people who came onto Medicare through Social Security Disability Insurance, because those approvals are so often backdated. If you were retroactively enrolled in Part B because of a retroactive eligibility decision by the Social Security Administration, your six months under G.S. 58-54-45 begin with the month you receive notification of that decision, not the month your coverage was backdated to. An award letter arriving in March with a Part B start date the previous June still leaves a live window. Keep the notice; the date on that notice is what an insurer should count from.

A second window if a Medicare Advantage plan drops you

The six-month clock is not the only window. Under G.S. 58-54-45(b), people eligible for Medicare by reason of disability before 65 whose managed care plan coverage ends through cancellation, nonrenewal, or disenrollment may buy Plan A, D, or G from any North Carolina insurer within 63 days after the termination or disenrollment date. That right is not limited to the company you just left, and 63 days is short, so the day the notice arrives is the day to start shopping.

How to Buy Before 65, Step by Step

1
Step 1

Date your window

North Carolina's six-month clock starts with the first month you were enrolled in Part B, or the month you received a retroactive eligibility notice, so keep that letter.

2
Step 2

Pick the letter before the company

Benefits inside a plan letter are identical across insurers, so choose among Plan A, D, and G first.

3
Step 3

Ask each company whether it markets that letter in North Carolina to age-based buyers whose Medicare eligibility began on or after January 1, 2020

G.S. 58-54-45 attaches that condition to Plan D and G, so the answer tells you whether the company owes you the plan. Start your list of companies from NCDOI's Medicare Supplement (Medigap) page.

4
Step 4

Apply directly, and name the right you are using

Cite G.S. 58-54-45 and say whether you are inside your six-month Part B window or the 63-day post-termination window.

5
Step 5

Keep your current coverage until the new policy is in force

Do not cancel on the strength of a verbal approval.

Plan A, Plan D, and Plan G Compared

Plan A is the letter North Carolina guarantees an under-65 disability beneficiary from any insurer, so it is the one to understand first. Medicare publishes the benefit grid letter by letter, including Plan A's, at Compare Medigap plan benefits. Plan A leaves you the Part A hospital deductible, $1,736 per benefit period in 2026, which Plan D and Plan G both pay., That is the practical reason to press a North Carolina company on whether it markets Plan D or G to age-based buyers rather than settling for the guaranteed floor.

Plan G is available to people newly eligible for Medicare on or after January 1, 2020, and it covers the same benefits as Plan F except the annual Part B deductible; it does cover Part B excess charges. Plan D does not cover that deductible either, because any Medigap plan paying the annual Part B deductible is closed to people who first became eligible for Medicare on or after that date. A high-deductible Plan G pays the same benefits as Plan G, but only after you meet a separate deductible of $2,950 in 2026, so a quote that looks unusually cheap may be the high-deductible version. On a fixed disability income, model that trade both ways before signing.

North Carolina's under-65 guarantee never reaches Plan N: G.S. 58-54-45 names only Plan A plus Plan D or G, so no North Carolina insurer owes you Plan N before 65.

The table below covers only the two deductibles and who can buy each letter before 65.

Feature Plan A Plan D Plan G
Part A hospital deductible ($1,736 per benefit period in 2026) You pay it Covered Covered
Annual Part B deductible ($283 in 2026) You pay it You pay it You pay it
Guaranteed to under-65 buyers in North Carolina Yes, from any insurer Only if the insurer markets it to age-based buyers eligible on or after January 1, 2020 Only if the insurer markets it to age-based buyers eligible on or after January 1, 2020

Why Plan C and Plan F Appear Only for Pre-2020 Eligibility

Plans C and F cover the annual Part B deductible, which Plan G leaves on you. Under the Medicare Access and CHIP Reauthorization Act of 2015 (MACRA), any Medigap plan paying the annual Part B deductible is closed to people who first became eligible for Medicare on or after January 1, 2020; people eligible earlier may still buy or keep Plan C or F. That is why the two subsections of G.S. 58-54-45 name different plan letters.

North Carolina Medigap Open Enrollment: When You Can Buy or Switch

North Carolina gives an under-65 Medigap buyer two protected openings before 65, both covered above: the six-month window from your first month of Part B, and the 63-day window after a managed care plan ends.

The third opening arrives at 65, it changes what you can own, and it is not North Carolina's to give. When an under-65 enrollee turns 65, a new, full six-month Medigap Open Enrollment Period opens to buy any standardized plan, and it comes from federal law: 42 U.S.C. Section 1395ss(s)(2)(A) runs that six months from the first month a person is both 65 or older and enrolled in Part B, which for someone already on Part B through disability is the month of the 65th birthday. Because that right is federal rather than state, it follows you out of North Carolina; the two windows above come from G.S. 58-54-45, so leaving the state leaves them behind and whatever the new state's own rules say would govern instead. During a Medigap Open Enrollment Period, federal rules bar an insurer from refusing to sell you any policy it offers, from using medical underwriting, and from charging you more because you have health problems. Someone who could only buy Plan A before 65 can therefore buy Plan D, G, or any other standardized letter inside that window, on the same terms as an age-based buyer.

Several states, including California, Idaho, and Nevada, have layered an annual birthday-rule switching right on top of the federal window. North Carolina is not among the states with a documented Medigap birthday rule.

Does North Carolina Medigap Under 65 Cost More?

North Carolina Medigap premiums under 65 can run higher, and the statute says so directly. G.S. 58-54-45(c) permits a North Carolina insurer to develop premium rates specific to the disabled population, and NCDOI tells consumers that premiums may be higher for Medicare disability beneficiaries than for Medicare beneficiaries 65 or older. Budget for a quote above the advertised 65-and-over rate rather than being surprised by one.

G.S. 58-54-45(c) also draws the line a North Carolina insurer may not cross: it bars pricing these under-65 Medigap plans on the health status, claims experience, receipt of health care, or medical condition of an applicant whose application arrives during an open enrollment or within 63 days after a managed care plan is terminated, and it requires the rates and any applicable rating factors to be filed with and approved by the North Carolina Commissioner of Insurance. Inside a protected window, then, the class you belong to may be rated. Your own medical file may not be.

Otherwise, Medigap premiums vary by plan letter, carrier, state, age, gender, smoker status, and underwriting, and are set by carriers rather than by Medicare. Because two policies carrying the same letter cover exactly the same care, price is the only number worth comparing. Ask how each company's rate is expected to move as you age, not just the first-year quote. Two free places to gather those quotes: NCDOI's own Medicare Supplement (Medigap) page, and Medicare's Medigap section. A SHIIP counselor will work through them with you at 1-855-408-1212, free, and sells nothing.

If your income is low, compare that premium against North Carolina's Medicare Savings Programs before you buy anything. NC Medicaid runs them under MQB names: MQB-Q, the federal QMB program, covers monthly income at or below 100% of the Federal Poverty Level, $1,330 for one person and $1,804 for two, and pays the Part A and Part B premiums plus deductibles and coinsurance; MQB-B reaches up to $1,596 for one person and MQB-E up to $1,796, and both pay the Part B premium. The resource limit for all three is $9,950 for an individual and $14,910 for a couple, and you apply through your county Department of Social Services. MQB-Q therefore covers the Part B deductible and coinsurance a Medigap policy would otherwise pay for, and because federal law restricts selling a Medigap policy to someone who has Medicaid, ask a SHIIP counselor how the two fit together before you sign anything.

Who Regulates Medigap in North Carolina, and How Do You File a Complaint?

Medicare Supplement policies in North Carolina are regulated by NCDOI. If a North Carolina insurer refuses to sell you Plan A, D, or G while you are inside a protected window, or prices your application on your medical history when G.S. 58-54-45 forbids it, NCDOI is the office with authority over that company, and it is where you file a complaint.

Before you complain, and before you buy, use the state's free counseling. North Carolina's Seniors' Health Insurance Information Program (SHIIP) is run by NCDOI itself. Counselors give free, unbiased help on Medigap, Medicare Advantage, and Part D, and do not sell insurance. The statewide SHIIP line is 1-855-408-1212, Monday through Friday, 8 a.m. to 5 p.m. Bring the month you first enrolled in Part B, any retroactive eligibility notice, and the plan letter you want.

Frequently Asked Questions

Can I buy Medigap in North Carolina if I'm under 65 and on disability?

Yes, and the harder question is which letters, because that turns on the carrier rather than on you. If a company tells you it does not sell Plan D or G in North Carolina to age-based buyers whose Medicare eligibility began on or after January 1, 2020, that company owes you only Plan A, and the richer letters have to come from one that does market them. Plan A itself is the floor no North Carolina insurer can refuse you, a guarantee G.S. 58-54-45 supplies and federal Medicare supplement regulations do not. So ask the question company by company: the same statute produces a different obligation depending on what that company already sells.

My quote came in above the advertised 65-and-over rate. Is that allowed?

For the class you belong to, yes; for your own medical file, no. The practical test is which of the two produced your number, so ask the company outright. A rate developed for the disabled population is permitted, and that rate and any rating factor behind it must be filed with and approved by the North Carolina Commissioner of Insurance, so a company can point to the filing your quote came from. Pricing that turns on your health status, claims experience, receipt of health care, or medical condition is barred outright when your application arrives during an open enrollment or within 63 days after a managed care plan is terminated. If a company will not say which of the two produced your number, NCDOI is the office that regulates it and takes the complaint.

My Part B enrollment was backdated. Did I miss my window?

Probably not: your clock runs from the notification, not from the backdated coverage month. The practical problem is proving that date to a company whose system reads the printed Part B start date instead, so send a copy of the Social Security Administration notification letter with the application and ask, in writing, which date the insurer used to open and close your window. Keep that answer. If a North Carolina insurer turns you down as late on the strength of the backdated date, NCDOI regulates that company and takes the complaint. A SHIIP counselor will read your notice with you first, free, at 1-855-408-1212.

At 65 I want to trade my Plan A for Plan G. Do I have to cancel the old policy first?

No. Federal law bars an insurer from knowingly selling a Medigap policy to someone who already has one unless the buyer gives a written statement that they will cancel the existing policy, so the new company should ask you to sign that statement rather than demand proof you have already dropped Plan A. Sign it, then time the cancellation so the Plan G policy is in force before the Plan A policy ends. Applying inside the fresh six-month window you get at 65 is what protects the application itself, and that window is federal, opened by 42 U.S.C. Section 1395ss(s)(2)(A) in the first month you are both 65 and enrolled in Part B, not by North Carolina.

My Medicare Advantage plan is ending. Which date starts my 63 days?

The termination or disenrollment date, not the day the notice arrives. G.S. 58-54-45(b) counts its 63 days from the date the managed care coverage is terminated or the date you are disenrolled, so a notice that sits unopened for two weeks has already spent two weeks of the window. Send a copy of the termination notice with your application so the insurer dates the window from the right day.

Learn More

MedicareMedicare Plans and Coverage in North CarolinaMedicare in North Carolina for 2026: Parts A and B, Medicare Advantage, Part D, the NC under-65 Medigap guarantee, free SHIIP counseling, and the MQB programs. MedicareHow Medigap WorksMedigap (Medicare Supplement) explained: how the standardized A-N plans work, Plan G vs Plan N, closed C and F plans, and the 6-month guaranteed-issue window. MedicareOriginal Medicare vs. Medicare AdvantageCompare original Medicare vs Medicare Advantage on cost, networks, the $9,250 cap, and switching back. A neutral 2026 side-by-side to help you choose. MedicareMedicare: The National GuideWhat is Medicare? A plain guide to Parts A, B, C, and D, who qualifies, 2026 costs, when to enroll, and what it doesn't cover, with help-paying options.

Find personalized help comparing North Carolina Medigap options as an under-65 beneficiary at brevy.com.

The information on Brevy.com is for educational purposes only and is not a substitute for professional legal, financial, or medical advice. Rules vary by state and program and change frequently. Always verify with the relevant agency or a qualified professional. Brevy is not a law firm, financial advisor, or healthcare provider.

BC

Brevy Care Team

Expert eldercare guidance from Brevy's team of healthcare professionals and researchers.