Yes, but not when ready — Medicare comes automatically after you have been on SSDI for 24 months

If you receive Social Security Disability Insurance (SSDI), you become covered by Medicare Part A and Part B automatically after you have been receiving SSDI payments for 24 consecutive months. You do not have to do anything to enroll — Social Security handles this automatically and sends you a Medicare card in the mail.

The 24-month waiting period starts from the month you first received an SSDI payment, not from the month you applied. If you were approved for SSDI but had to wait for your first check to arrive, that waiting period still counts from your first payment month.

During those first 24 months, you have no Medicare coverage through SSDI. If you need health insurance before Medicare begins, you may be able to purchase coverage through the health insurance marketplace, Medicaid (which varies by state), or another source.

Key Takeaways

  • Medicare Part A and Part B start automatically 24 months after your first SSDI payment arrives, with no enrollment action needed on your part.
  • Part A covers hospital stays and skilled nursing care; Part B covers doctor visits and outpatient services, with a monthly premium deducted from your SSDI check.
  • You can enroll in Medicare Advantage (Part C) or prescription drug coverage (Part D) during your initial enrollment period or during the annual open enrollment window.
  • If you return to work and your SSDI ends, your Medicare coverage continues for at least 8 more years, even if you no longer receive payments.

What Medicare Part A and Part B cover under SSDI

Part A is hospital insurance. It covers inpatient hospital stays, skilled nursing facility care (after a hospital stay), hospice care, and some home health services. There is no monthly premium for Part A if you have worked long enough to earn Social Security credits — which you have, since you may have access to for SSDI.

Part B is medical insurance. It covers doctor visits, outpatient services, lab tests, imaging, and some preventive care. Part B has a monthly premium that is deducted automatically from your SSDI check. The standard premium in 2024 is $164.90 per month, but the amount changes each year and may be higher if your income is above a certain threshold.

Both parts have deductibles and copayments. Part A has a deductible for hospital stays (currently $1,632 per benefit period in 2024, though this changes yearly). Part B has an annual deductible (currently $240 in 2024) and then you pay 20 percent of the cost for most services after that.

The 24-month waiting period and what to do before Medicare starts

The 24 months are counted in calendar months, not business days. If your first SSDI check arrives on March 15, your 24-month period begins in March. After 24 months have passed, Medicare coverage begins on the first day of the month you turn 65 or the first day of the 25th month of SSDI, whichever comes first.

Before Medicare begins, you need health coverage. You can enroll in a plan through the health insurance marketplace (Healthcare.gov or your state's marketplace) during the open enrollment period, which runs from November 1 to January 15 each year. If you have a may have access to life event — such as losing other coverage — you may be able to enroll outside the open period.

Some states offer Medicaid to people receiving SSDI. Medicaid rules vary widely by state, so contact your state Medicaid office to learn whether you may be covered while you wait for Medicare. You can find your state Medicaid office through Medicaid.gov.

Medicare Advantage and prescription drug coverage options

Once your Medicare Part A and Part B coverage begins, you have the option to enroll in Medicare Advantage (Part C) or prescription drug coverage (Part D). These are not automatic — you must choose to enroll.

Medicare Advantage is an alternative to Original Medicare (Part A and Part B). It is offered by private insurance companies and usually includes prescription drug coverage, dental, vision, and hearing benefits that Original Medicare does not cover. However, you typically pay copayments for each visit and are limited to a network of doctors. You can enroll in Medicare Advantage during your initial enrollment period (the three months before and after you turn 65 or become may be able to access for Medicare) or during the annual open enrollment period (October 15 to December 7).

Part D is prescription drug coverage. If you stay on Original Medicare (Part A and Part B), you should enroll in Part D when you first become may be able to access, because waiting to enroll can result in a permanent penalty added to your premium. You can enroll during your initial enrollment period or during the annual open enrollment period.

What happens to Medicare if you return to work and SSDI ends

If you return to work and your SSDI payments stop, your Medicare coverage does not stop when ready. You are may have access to to continue Medicare for at least 8 more years, even though you are no longer receiving SSDI payments. This is called the Extended Medicare Coverage period.

During this extended period, you continue to pay the Part B premium (deducted from any other income you receive, or you pay it directly to Medicare). You do not pay a Part A premium. After the 8-year extended period ends, you can keep Medicare if you are 65 or older, or your coverage ends if you are under 65 and no longer meet the conditions for extended coverage.

You should notify Social Security as soon as you return to work so they can explain your options and may support you understand how your benefits and Medicare coverage will change. Continuing to work while on SSDI is possible under the Plan to Achieve Self-Support (PASS) program, which allows you to set aside income and resources for work-related goals without losing benefits.

Medicare costs and how premiums are deducted from your SSDI check

The Part B premium is deducted automatically from your SSDI payment each month. If your SSDI payment is smaller than the premium, you will receive a reduced SSDI check and owe the difference to Medicare, or Medicare will bill you separately.

Part A has no monthly premium, but you pay a deductible when you use hospital services. Part B has an annual deductible and then you pay 20 percent of costs for most services. If you enroll in Medicare Advantage, your costs depend on the specific plan — some have low or no premiums but higher copayments, while others have higher premiums but lower out-of-pocket costs.

If your income is low, you may be able to get help paying Medicare premiums and cost-sharing through the Medicare Savings Program or Extra Help (for Part D). These programs are run by your state. Contact your state Medicaid office or call 1-800-MEDICARE to learn whether you may have access to.

How to confirm your Medicare enrollment and access your coverage

About three months before your Medicare coverage begins, Social Security will send you a notice explaining your coverage start date. Approximately two weeks before coverage starts, you will receive your Medicare card in the mail. Keep this card with you when you see a doctor or go to the hospital.

You can check your Medicare coverage and claims online at Medicare.gov. Create an account using your Social Security number and password. From there, you can view your coverage details, see what services are covered, check claims, and manage your prescriptions if you have Part D.

If you do not receive your Medicare card by the time your coverage should start, call 1-800-MEDICARE (1-800-633-4227). You can use your SSDI award letter as proof of coverage until your card arrives. If you move, update your address with Social Security so your Medicare card reaches you at the correct location.

Frequently Asked Questions

Do I have to pay for Medicare if I am on SSDI?

Part A has no premium. Part B has a monthly premium (currently $164.90 in 2024, but this changes yearly) that is deducted from your SSDI check. You also pay deductibles and copayments when you use services. If your income is very low, you may be able to get help paying these costs through your state's Medicare Savings Program.

What if I need health insurance before my 24 months of SSDI are up?

You can enroll in a marketplace plan during open enrollment (November 1 to January 15) or if you have a may have access to life event. You may also be covered by Medicaid in your state — contact your state Medicaid office to ask. Some community health centers offer low-cost or sliding-scale care if you cannot afford insurance.

Can I choose Medicare Advantage instead of Original Medicare?

Yes. Once your Medicare coverage begins, you can enroll in Medicare Advantage during your initial enrollment period (three months before and after you turn 65 or become may be able to access) or during the annual open enrollment period (October 15 to December 7). Medicare Advantage is run by private insurance companies and often includes dental, vision, and prescription drug coverage.

What happens to my Medicare if I go back to work and lose SSDI?

Your Medicare continues for at least 8 more years after your SSDI ends, even though you no longer receive payments. You continue to pay the Part B premium. After 8 years, you can keep Medicare if you are 65 or older, or your coverage ends if you are under 65.

How do I know when my Medicare coverage actually starts?

Social Security sends you a notice about three months before your coverage begins, stating your start date. Your Medicare card arrives about two weeks before coverage starts. You can also check Medicare.gov or call 1-800-MEDICARE to confirm your coverage date.