Turning 65 After Medicare on Disability: What Changes and What to Do

If you've been on Medicare because of a disability, turning 65 doesn't end your coverage. It opens doors. You get a new enrollment window, penalties from your disability years can go away, and you get your first guaranteed chance at a Medicare Supplement in many cases. This page walks through what changes, what stays the same, and what to do in the months around your 65th birthday. For the earlier part of the journey, see our guide to Medicare under 65 on disability.

Does my Medicare change when I turn 65?

Your Medicare keeps going. You don't lose it or have to start over. What changes is the set of choices you have.

Your Social Security disability benefit doesn't end at 65 either. It changes to retirement benefits automatically when you reach full retirement age, which is 66 to 67 depending on the year you were born.

What new choices do I get at 65?

Three things open up around your 65th birthday: a new plan window, a penalty reset, and a Medigap Open Enrollment Period.

Why does the Medigap Open Enrollment Period matter so much?

Because under 65, buying a Medicare Supplement is limited, and at 65 federal law guarantees it for six months.

Federal law doesn't require companies to sell Medigap to people under 65, so what you could buy on disability depended on your state. At 65, the federal guarantee applies everywhere. During the 6 months starting the first month you're 65 and enrolled in Part B, a Medigap insurer can't deny you, delay your coverage or charge you more because of your health. After those 6 months, insurers can generally ask health questions unless you have another guaranteed right.

How that compares with what you had under 65:

• North Carolina: under 65, insurers had to offer Plan A, plus Plan D or G if they sell them at 65, within 6 months of Part B. At 65, you can choose from every plan the insurer sells.
• South Carolina: under 65, the guarantee ran only through the state pool (SCHIP). At 65, private insurers must accept you during your open enrollment.
• Tennessee: under 65, insurers already had to offer the same plans sold at 65 during set windows. At 65, you get the federal open enrollment as well.

Medigap plans are standardized by letter, so the basic benefits for a given plan letter are the same from one insurer to the next. Premiums, underwriting, discounts and company service can still differ. See what a Medicare Supplement is.

Should I switch plans at 65?

Not necessarily, but you should review. This is the most choice you'll have at one time. Neither Advantage nor a Supplement is automatically the right answer.

• If you're in a Medicare Advantage plan, you can keep it. You can also use your new 7-month window to move to Original Medicare and apply for a Medigap policy during open enrollment. Compare the two paths in Medicare Advantage vs. Medicare Supplement.
• If you're in Original Medicare without a Supplement, this is the time to price Medigap plans without health questions.
• If you already have a Medigap plan bought under 65, compare it with what's available to you at 65. In some states, under-65 rates are set separately from the rates for people 65 and older.
• If you have Medicaid or a Medicare Savings Program, your help with costs continues if you still qualify. See having both Medicare and Medicaid.

What should I do, and when?

1. About 4 months before your 65th birthday month: list your doctors, prescriptions and current costs, and check whether you carry a Part B or Part D late-enrollment penalty.
2. 3 months before your birthday month: your new 7-month window opens. If you plan to change your Advantage or drug plan, you can do it now.
3. The first month you're 65 and have Part B: your 6-month Medigap Open Enrollment Period begins. Apply early in it so your coverage lines up.
4. Keep drug coverage without a gap. Once your Part D penalty resets, a new one can start if you go 63 days or more without creditable drug coverage.
5. At full retirement age (66 to 67): your SSDI becomes a retirement benefit. You don't need to do anything for your Medicare.

Mistakes we see people make

• Assuming nothing changes at 65. The Medigap window is a one-time chance and it closes after 6 months.
• Keeping a penalty they no longer owe. Check your Medicare premium notice after 65.
• Dropping an Advantage plan before lining up a Medigap policy. Apply for the Supplement first, then time the switch.
• Letting drug coverage lapse after the Part D penalty resets.

What to have ready before you talk to us

• Your Medicare card and the dates your Part A and Part B started
• Your current plan and what you pay for it, including any penalty
• Your doctors, specialists and every prescription with the dose
• Any Medicaid or Medicare Savings Program letters
• Anyone who helps with your care, so they can join the call

How The Jordan Insurance Agency helps

A licensed agent from The Jordan Insurance Agency will map the windows that open around your 65th birthday, check whether any penalty should drop off, and compare staying put with moving to a Medicare Supplement, using your actual doctors and prescriptions. We work by phone, by video, or in person at our office at 3540 Toringdon Way, Suite 200, Charlotte, NC 28277, Monday through Friday, 9 to 5 Eastern, at no cost to you. Call (704) 926-7565 or use the button below to schedule a Medicare review. You can also read more on our Medicare page or browse our Medicare questions answered.

Frequently asked questions

Do I have to sign up for Medicare again at 65 if I'm already on it?

No. Your Medicare continues. What you get at 65 is a new 7-month window to change Medicare Advantage or drug plans, and a 6-month Medigap Open Enrollment Period.

Can I get a Medicare Supplement at 65 if I was turned down before?

Yes. During the 6 months starting the first month you're 65 and enrolled in Part B, a Medigap insurer can't turn you down or charge you more because of your health, even if you've had Part B for years.

Does my Part B penalty go away at 65?

A Part B late-enrollment penalty that built up while you were on disability-based Medicare stops once you reach 65. A Part D penalty from those years ends the day before your new 7-month window begins.

Does my disability check stop at 65?

No. Social Security disability benefits change to retirement benefits automatically at full retirement age, which is 66 to 67 depending on your birth year.

Can I keep my Medicare Advantage plan after I turn 65?

Yes. You can keep it, switch to another plan during your new 7-month window, or move to Original Medicare with a Medicare Supplement during your Medigap Open Enrollment Period.

Reviewed and approved by Billy Jordan, Jr., licensed agent and President of The Jordan Insurance Agency.

Last reviewed: October 2026