The short answer
If you are under 65 and getting Social Security disability benefits, you get Medicare automatically after 24 months of benefits, or when you turn 65, whichever comes first. Nothing to file. A welcome package with your card arrives 3 months before coverage starts. Medigap is the exception, and it depends on your state.
Your disability benefits came from Social Security, not Medicare. But the month they began, a second clock started. Twenty-four months later, Medicare arrives on its own, with no form to file. What arrives with it, and what stays out of reach until you turn 65, is the rest of this page.
How do I get Medicare under 65 with a disability?
Through your disability benefits, and automatically. If you are under 65 and getting disability benefits from Social Security, you get Medicare after 24 months of those benefits, or when you turn 65, whichever comes first. You do not apply for Medicare separately. The benefits themselves carry you in.
The rule has two ends and Medicare states both. You get Medicare automatically after getting disability benefits for 24 months, or when you turn 65, whichever comes first. The clock counts months of getting benefits, so it starts when the benefits start.
Automatic covers both halves of Medicare. On Medicare's page for people getting Medicare before 65, the wording is that a person getting Social Security benefits at least 4 months before turning 65 does not need to do anything to sign up. Medicare enrolls you in both Part A, which is hospital insurance, and Part B, which is medical insurance.
That condition is the calendar's, about benefits running ahead of a 65th birthday. On the disability route, the 24 month clock above is what sets your date.
Whether you qualify for disability benefits at all is Social Security's decision, not Medicare's, and the overview of who can get Medicare early is on this publication's eligibility page. This page owns what happens after the benefits are granted: the clock, the enrollment, and the one protection that does not come along.
The clock comes first, because everything else is timed off it.
How long is the 24-month waiting period?
Twenty-four months of getting disability benefits, and it runs on its own. The count starts with your first month of benefits, and Medicare arrives after 24 of them, or at 65 if that comes sooner. Three months before coverage starts, a welcome package with your Medicare card arrives by mail.
Say your disability benefits began in June two years ago. This June is month 24, and Medicare arrives on its own. The welcome package with your card came three months before the coverage started, without a request, the way the enrollment itself does.
Here is the whole clock, as Medicare states it.
| Your question | What Medicare states | The catch |
|---|---|---|
| When does Medicare arrive | After 24 months of disability benefits, automatically | The count is months of benefits |
| What if I turn 65 first | Medicare arrives at 65 instead | Whichever comes first wins |
| How will I know | A welcome package with your card, 3 months early | It arrives by mail, unasked |
| What do I sign | Nothing. Enrollment covers Part A and Part B | Doing nothing is the process |
The waiting period is the whole process. Medicare's own wording for each row is that it happens without you signing anything.
What the process delivers at the end is the next question.
What does Medicare cover for someone under 65 on disability?
The same Medicare everyone else gets. You are enrolled in Part A, which is hospital insurance, and Part B, which is medical insurance. Once you have Part A or Part B, you have Original Medicare, and the same choices for adding coverage that anyone else with Medicare has.
Neither page this article links to describes a smaller or separate Medicare for people under 65. The enrollment Medicare describes is Part A and Part B, the same two letters that anchor every other Medicare card.
From there, Medicare's language is about additions. Once you have Part A or Part B, you have Original Medicare. Medicare states that most people add prescription coverage by choosing to join a Medicare drug plan. You can also add coverage by buying a Medigap policy, or join a Medicare Advantage plan instead of Original Medicare.
What Part A and Part B each pay for, service by service, is not this page's ground. What matters here is that the pages read for this article carve out no exceptions for the disability route.
Two of those additions carry their own catch for a reader under 65, and the drug one comes first.
Do I get Part D too?
Not automatically. The enrollment Medicare describes covers Part A and Part B, and prescription drug coverage is a step it describes as a choice. Medicare states that most people add prescription coverage by choosing to join a Medicare drug plan, which is what Part D means.
The welcome package announces Part A and Part B. No page read for this article describes a drug plan arriving the same way. Joining one is an act.
Which plans exist, what they cost, and when you can join them are carried by this publication's drug plan pages, which own those questions for every route into Medicare.
For this page, the fact is the shape: the parts arrive on their own, and the drug coverage does not.
The next change of shape does not come from a choice at all. It comes from a birthday.
What happens when I turn 65?
If Medicare has not arrived through the 24 month clock yet, it arrives at 65 instead, because the rule is whichever comes first. If you already have Medicare through disability, turning 65 changes something else: the limits on buying a Medigap policy end at 65.
For a reader still inside the count, the rule's second end does the work. The wait never runs past 65, because 65 is the other end of the rule.
For a reader who already has Medicare through disability, the pages read for this article name one change, and it is about Medigap. Medicare's wording is that with a disability you may not be able to buy the Medigap policy you want, or any policy, until you turn 65 itself. The operative words are until you turn 65: on that birthday, the limit expires.
That is also when the Medigap Open Enrollment Period opens. What that window is, and how it works, is covered on this publication's Medigap open enrollment page.
Which leaves the question this article has been walking toward: what about before 65?
Can I get Medigap under 65?
It depends on your state, and that answer is Medicare's own. Some states allow anyone with Medicare under 65 to buy a Medigap policy. Federal law does not require companies to sell Medigap policies to people under 65, so before 65 the protection is state law or nothing.
Medicare's answer, in its own buying tool, runs in steps. It depends on your state. Some states allow anyone with Medicare under 65 to buy a Medigap policy.
The next two steps narrow it. If you have ESRD or a disability, you may not be able to buy the Medigap policy you want, or any Medigap policy, until your 65th birthday. And some states let you buy one only if you are eligible for Medicare because of ESRD or disability.
The protected Medigap window does not exist before 65. That sentence is this publication's reading rather than a line Medicare prints, and two of Medicare's statements produce it.
Federal law does not require companies to sell Medigap policies to people under 65. And the Medigap Open Enrollment Period, the window Medicare calls the best time to buy, is defined as starting the first day of the month you are 65 or older and signed up for Part B.
Put together: the window cannot open before 65. Under 65, there is state law or there is nothing. Both facts are Medicare's. Reading them together is ours.
One requirement holds at any age. Medicare states that you must sign up for Medicare Part B before you can buy a Medigap policy.
Medicare also marks the edge of its own answer. Its Medigap answers apply to your federal rights only, and it directs you to contact your state to find out whether state law offers more chances to buy, and to check with your State Insurance Department about rights you might have under state law.
Which states allow what is not published on the pages read for this article, so no state list is given here.
The federal floor is the sentence in bold, and everything above it is your state's to add.
What this means for you
Medicare through disability arrives on its own after 24 months of benefits, or at 65, whichever comes first, and it enrolls you in Part A and Part B. Drug coverage is a choice you add. Medigap under 65 depends on your state, because federal law does not require any company to sell one before 65.
The clock needs nothing from you. The welcome package with your card comes 3 months before coverage starts, and the enrollment covers both parts together.
The two additions behave differently. Drug coverage is a choice on every route, and Medicare states that most people add a Medicare drug plan. Medigap before 65 is the one place the ground is not federal: some states open it to anyone with Medicare, some only to some, and federal law does not require a company to sell to you before 65.
For whether you qualify for Medicare early at all, read this publication's eligibility overview. For how the Medigap window works at 65, read the Medigap open enrollment page. This cluster also carries its own pages on Medicare with kidney failure and Medicare with ALS.
FAQ
Which states let you buy a Medigap policy under 65?
The pages read for this article do not name the states, so this page will not either.
What Medicare states is the shape: some states allow anyone with Medicare under 65 to buy a Medigap policy, and some let you buy one only if you are eligible for Medicare because of ESRD or disability. It also states the route to the real answer for where you live.
Contact your state to find out whether it offers more opportunities to buy a Medigap policy under state law, and check with your State Insurance Department about the rights you might have. Those two doors, your state and its Insurance Department, are Medicare's own answer to the question.
Do I need Part B before I can buy a Medigap policy?
Yes. Medicare states it as a plain requirement: you must sign up for Medicare Part B before you can buy a Medigap policy. On the disability route, this requirement tends to take care of itself, because the automatic enrollment covers both Part A and Part B, so by the time Medicare arrives you already hold the part that Medigap requires.
Holding Part B is the federal half of being able to buy. The other half is the state question this page's last section covers, because holding Part B makes you a buyer only where someone is required, or chooses, to sell.
How do I sign up for Medicare if I am on disability?
You do not, and that is the rule rather than an oversight. Medicare states that if you are under 65 and getting disability benefits from Social Security, you get Medicare automatically after getting disability benefits for 24 months, or when you turn 65, whichever comes first.
Its wording for people already getting Social Security benefits is that you do not need to do anything to sign up, and that it automatically enrolls you in both Part A and Part B.
The confirmation is physical: a welcome package with your Medicare card, mailed 3 months before your coverage starts. If the clock is running, the package is already scheduled.
Can I join a Medicare Advantage plan under 65?
The page Medicare publishes for people getting Medicare before 65 includes the choice. Once you have Part A and Part B, you can choose to join a Medicare Advantage or other Medicare health plan instead of Original Medicare, or you can stay with Original Medicare and add to it.
The pages read for this article attach no age condition to that choice, which makes it different ground from Medigap, where the under 65 answer depends on your state. What plans exist where you live, what they cost, and how they compare is carried on this publication's plan pages, which own those questions for every reader.
Does the 24 month waiting period apply to everyone under 65?
No. The 24 month count belongs to one route: getting disability benefits from Social Security. Medicare's before 65 page also carries the ALS rule, which runs on its own clock, and this cluster explains that rule on its own page, next to a page on Medicare with kidney failure.
What every route shares is the destination. Once you have Part A or Part B, you have Original Medicare, and the choices for adding to it are the same ones this page describes. Whichever door you came through, the additions work the same way. The clock you are on decides when Medicare starts, not what Medicare is.
