Yes, but not right away

If you receive Social Security Disability Insurance (SSDI), you will eventually get Medicare — but there is a waiting period. You become covered by Medicare after you have been receiving SSDI payments for 24 consecutive months. This means if your SSDI began in January, your Medicare coverage would start in January of the following year, two years later.

The 24-month wait applies even if you are young. Age does not matter for SSDI recipients; the clock starts when your first SSDI payment arrives, regardless of whether you are 25 or 65. Once those 24 months pass, Medicare enrollment happens automatically — you do not have to do anything or submit a separate form.

There is one exception: if you have ALS (amyotrophic lateral sclerosis), you become covered by Medicare when ready, with no waiting period. For everyone else receiving SSDI, the 24-month rule applies.

Key Takeaways

  • Medicare coverage begins automatically after 24 months of receiving SSDI payments, with no process needed on your part.
  • The 24-month waiting period starts from your first SSDI payment, not from when you were approved or when you filed.
  • People with ALS become covered by Medicare right away, without waiting the full 24 months.
  • Once your Medicare coverage starts, you will receive a Medicare card in the mail and can use it when ready at hospitals, doctors, and pharmacies.
  • If you also may have access to for Medicaid, that program can help cover costs that Medicare does not pay while you are waiting for Medicare to begin.

What happens during the 24-month waiting period

While you wait for Medicare to start, you may still have coverage options. Many states cover SSDI recipients through Medicaid during this time, though the rules vary by state. Medicaid can pay for doctor visits, hospital care, and prescriptions while you are waiting, so it is worth checking whether your state offers this coverage.

To learn about your state covers SSDI recipients through Medicaid before Medicare begins, contact your state Medicaid office or call 211. You can also ask the Social Security office handling your SSDI case — they often know which programs are available in your area.

If you do not have Medicaid and cannot afford medical care during the waiting period, community health centers offer sliding-scale fees based on income. The Health Resources and Services Administration (HRSA) maintains a directory of these centers at findahealthcenter.hrsa.gov.

What Medicare covers once it begins

Medicare has four parts, and as an SSDI recipient you will be enrolled in Parts A and B automatically. Part A covers hospital stays, skilled nursing care, hospice, and some home health services. Part B covers doctor visits, outpatient care, lab tests, and medical equipment like wheelchairs or oxygen.

Part A has no monthly premium — it is free. Part B has a monthly premium that is deducted from your SSDI payment. The premium amount changes each year; you can find the current amount on Medicare.gov or by calling 1-800-MEDICARE.

Medicare does not cover everything. You will still pay a deductible before coverage kicks in, and you will share the cost of some services with Medicare. Many SSDI recipients also buy Medigap (supplemental insurance) to cover costs that Medicare leaves unpaid, though Medigap has its own monthly premium.

How to prepare before Medicare starts

About three months before your 24-month waiting period ends, Social Security will send you information about Medicare enrollment. You do not need to do anything — enrollment is automatic. However, you should review the materials when they arrive so you understand what coverage you will have.

Before your Medicare card arrives, make a list of your current doctors and medications. When Medicare starts, you may need to check whether your doctors accept Medicare and whether your prescriptions are covered under the Medicare drug plan (Part D). If your current doctor does not accept Medicare, you will need to find one who does.

If you are taking medications, review them carefully once you have your Medicare information. Some drugs are not covered, and others require prior approval from Medicare before the pharmacy will fill them. Your pharmacist can tell you whether your prescriptions are covered under your plan.

Prescription drug coverage under Medicare

Once your Medicare begins, you can enroll in Part D, which covers prescription drugs. Part D is optional, but if you do not enroll when you first become may be able to access, you may pay a penalty if you sign up later. The penalty is a percentage added to your monthly premium for as long as you have Part D.

Part D plans vary in which drugs they cover and how much you pay. Some medications are free or low-cost under certain plans, while others are expensive or not covered at all. You can compare plans and see which drugs are covered at Medicare.gov/plan-compare.

If you cannot afford Part D premiums or drug costs, you may be able to get help through the Low-Income Subsidy (LIS) program. This program pays some or all of your Part D costs if your income is below a certain level. To explore, contact Social Security or your state Medicaid office.

What to do if you need medical care before Medicare starts

If you have a serious health condition and cannot wait for Medicare to begin, tell your doctor or hospital that you are receiving SSDI and ask about payment plans or financial hardship programs. Many hospitals have charity care programs that reduce or eliminate bills for people with low income.

If you need ongoing prescriptions, ask your doctor whether they have samples or whether they can prescribe a generic version that costs less. Some pharmaceutical companies also offer free or reduced-cost medications to people who cannot afford them; your doctor or pharmacist can help you find these programs.

If you are facing a medical emergency, go to the emergency room. Emergency rooms must treat you regardless of your ability to pay. After treatment, work with the hospital's financial counselor to set up a payment plan or explore whether you may have access to for charity care.

How SSDI and Medicare interact with other insurance

If you have health insurance through a job or a family member, you can keep that coverage even after Medicare starts. Medicare will be your primary insurance, meaning it pays first, and your other insurance pays second. This is called coordination of benefits.

If you are still working and have employer health insurance, you do not have to drop it when Medicare begins. However, you should tell your employer's benefits office that you now have Medicare so they can coordinate payments correctly.

If you have Veterans benefits, those continue alongside Medicare. The VA and Medicare can both cover you, and you can use either or both. There is no conflict between them.

Frequently Asked Questions

Does the 24-month waiting period restart if my SSDI stops and then starts again?

No. If your SSDI stops for a short time and then restarts, the months you already waited count toward the 24 months. However, if there is a long gap and your case is closed completely, you would start a new 24-month period when SSDI restarts. Contact Social Security to confirm your specific situation.

What if I turn 65 while waiting for Medicare to start?

When you turn 65, you automatically switch from SSDI to Social Security retirement benefits, and you become covered by Medicare at 65 regardless of how long you have been receiving SSDI. You do not have to wait the full 24 months if you reach age 65 first.

Can I choose not to enroll in Medicare when it starts?

You are automatically enrolled in Parts A and B, and you cannot decline them. However, you can decline Part D (prescription drug coverage) if you choose, though this may result in a penalty if you enroll later. Part B can be declined, but this is rare and usually only done if you have other coverage.

Will my SSDI payment change when Medicare starts?

Your SSDI payment amount does not change, but your take-home amount will be slightly less because the Part B premium is deducted from your payment. The premium is deducted automatically each month.

What if I cannot afford the Part B premium?

If your income is very low, you may be able to get help paying Part B premiums through your state Medicaid office. Some states cover Part B premiums for people receiving SSDI. Contact your state Medicaid office or call 211 to ask whether this program is available where you live.