Medicare and SSDI are separate programs, but they connect automatically

Social Security Disability Insurance (SSDI) does not automatically include Medicare. However, if you receive SSDI, you become may be able to access for Medicare after you have been on SSDI for 24 consecutive months. This is a federal rule that applies regardless of your age or income. Medicare enrollment happens on its own — you do not have to request it separately.

The 24-month waiting period starts from the month you first receive an SSDI payment, not from the month you applied. If you were approved retroactively (meaning the Social Security Administration paid you for months before your approval letter arrived), those retroactive months count toward your 24 months.

Once you reach 24 months on SSDI, Social Security automatically enrolls you in Medicare Part A (hospital insurance) and Medicare Part B (medical insurance). You will receive your Medicare card in the mail about three months before your coverage begins.

Key Takeaways

  • You become may be able to access for Medicare after 24 consecutive months of receiving SSDI payments, regardless of your age.
  • Social Security enrolls you in Medicare automatically — you do not need to take any action or submit paperwork.
  • Your Medicare coverage begins the 25th month of your SSDI may be able to access, and you will receive your card by mail beforehand.
  • Medicare Part A and Part B both begin on the same date, though you can decline Part B if you have other health coverage.

What happens when your 24 months on SSDI ends

When you reach your 24th month on SSDI, Social Security sends you a notice explaining that Medicare enrollment is happening. This notice arrives before your coverage starts. Your Medicare Part A and Part B both begin on the first day of your 25th month on SSDI.

You do not pay a premium for Medicare Part A (hospital insurance). Part B (medical insurance) has a monthly premium that Social Security deducts from your SSDI payment. The Part B premium amount changes each year. If you cannot afford Part B, you can decline it, but you should understand what that means for your coverage before you decide.

If you were already enrolled in Medicare before you reached 24 months on SSDI — for example, because you turned 65 — your existing Medicare coverage continues without interruption.

What if you work and your SSDI stops

If your SSDI payments end because you returned to work and earned too much money, your Medicare coverage does not stop when ready. You can keep Medicare Part A for as long as you remain disabled, even if your SSDI payments have ended. This is called Extended Medicare Coverage.

Part B coverage continues during a nine-month trial work period (a time when you can work and still receive full SSDI payments). After that nine-month period, if your earnings are too high, your SSDI payments stop — but you can purchase Part B coverage for a limited time at a reduced rate. The exact rules depend on how much you earn and when.

Social Security will explain these options in writing when your SSDI payments end. If the explanation is unclear, you can call Social Security at 1-800-772-1213 to ask about your specific situation.

Medicare costs when you are on SSDI

Medicare Part A has no monthly premium for people on SSDI. You pay a deductible when you use hospital services, and that deductible changes each year. In 2024, the Part A deductible is $1,632 per hospital stay, but this amount varies year to year.

Medicare Part B has a monthly premium that Social Security deducts from your SSDI check. The standard Part B premium in 2024 is $164.90 per month, but the actual amount you pay depends on your income from the previous year. People with higher incomes pay higher premiums. Social Security will tell you the exact amount you will pay when they send your Medicare enrollment notice.

You also pay a Part B deductible ($240 in 2024) and a percentage of the cost of doctor visits and other services. Medicare Part D (prescription drug coverage) is separate and optional — you choose whether to enroll, and it has its own monthly premium.

Medicaid and SSDI: a different program

Medicaid is not the same as Medicare, and SSDI does not automatically connect you to Medicaid. Medicaid is a state-run program for people with low income, and the rules vary widely by state. Some states cover people on SSDI automatically; others require a separate process.

Because Medicaid covers things Medicare does not (like dental care, vision care, and long-term care), many people on SSDI are enrolled in both programs. To find out whether you are may be able to access for Medicaid in your state, contact your state Medicaid office or call 211 to be connected to local resources.

If you are enrolled in both Medicare and Medicaid, Medicaid typically pays your Medicare premiums and deductibles. This is called full dual coverage, and it significantly reduces your out-of-pocket costs.

What to do if you do not receive your Medicare card

Your Medicare card should arrive by mail about three months before your coverage begins. If you do not receive it by the time your coverage is supposed to start, you can create an account on Medicare.gov and view your coverage information online. You can also call Medicare at 1-800-MEDICARE (1-800-633-4227) to confirm your enrollment and request a replacement card.

Do not wait to receive your card before seeking medical care. Your coverage begins on the date Social Security told you it would, whether or not you have the physical card. Bring your Social Security number to your doctor's office if you do not have the card yet — they can look up your coverage using that information.

Frequently Asked Questions

Can I decline Medicare Part B when it starts?

Yes. When Social Security sends your enrollment notice, you can decline Part B by following the instructions in the letter. However, if you decline and later want to enroll, you may pay a higher premium for the rest of your life. Only decline if you have other health coverage that is as good as Medicare Part B.

Does Medicare start right away when I get approved for SSDI?

No. You must receive SSDI payments for 24 consecutive months first. Medicare begins in your 25th month on SSDI. If you were approved retroactively, the retroactive months count toward the 24 months.

What if I turn 65 while I am on SSDI?

You will be automatically enrolled in Medicare at 65, even if you have not yet reached 24 months on SSDI. Your coverage will begin the month you turn 65. This does not affect your SSDI payments.

Do I have to pay back Medicare costs if my SSDI is denied on appeal?

If your SSDI is later found to have been wrongly approved and payments are stopped, you may owe back the cost of Medicare premiums Social Security deducted from your payments. Contact Social Security when ready if your SSDI is denied so you understand what happens to your Medicare coverage.

Can I use Medicare at any doctor or hospital?

Medicare Part A works at any hospital that accepts Medicare. Part B works at doctors and clinics that accept Medicare assignment. Before your first visit, call ahead to confirm the provider accepts Medicare. Some providers do not, and you may have to pay the full cost yourself.