Medicare starts automatically after you receive SSDI for 24 months

If you are receiving Social Security Disability Insurance (SSDI), Medicare enrollment happens without you having to file a separate process. The Social Security Administration enrolls you in Medicare Part A (hospital insurance) and Part B (medical insurance) automatically once you have been receiving SSDI benefits for 24 consecutive months. This 24-month waiting period begins the month your SSDI payments start, not the month you filed your claim.

Your Medicare coverage becomes effective on the first day of the 25th month of SSDI receipt. You will receive your Medicare card in the mail before your coverage begins. Part A has no monthly premium for most people receiving SSDI, but Part B does have a monthly premium that is usually deducted directly from your SSDI payment.

If you are under 65 and receiving SSDI, Medicare is your primary health insurance once the 24-month period ends. You cannot decline this coverage, though you can choose whether to enroll in additional plans like Part D (prescription drug coverage) or Medigap policies.

Key Takeaways

  • Medicare Part A and Part B enroll automatically after 24 months of SSDI receipt; you do not need to take any action to start this coverage.
  • Part A (hospital insurance) typically has no monthly premium for SSDI recipients, but Part B (medical insurance) has a premium deducted from your SSDI payment.
  • Your Medicare card arrives by mail before your coverage starts on the first day of your 25th month receiving SSDI.
  • Part D (prescription drug coverage) and Medigap supplemental insurance are optional and require separate enrollment during open enrollment periods.
  • If you work and your earnings cause your SSDI to stop, your Medicare coverage continues for at least 8 years and 9 months in most cases.

What Part A and Part B cover under SSDI

Part A 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 when you are receiving SSDI. You will pay a deductible when you enter the hospital, and you may pay coinsurance for longer stays.

Part B covers doctor visits, outpatient services, diagnostic tests, and certain preventive care. The monthly premium for Part B varies each year and is usually taken directly from your SSDI payment. In 2024, the standard Part B premium is $164.90 per month, though your actual premium may be higher or lower depending on your income and when you enrolled. You also pay a yearly deductible and coinsurance for most services.

Neither Part A nor Part B covers dental care, vision care, hearing aids, or long-term custodial care in a nursing home. If you need these services, you can purchase separate coverage through Medigap or Medicare Advantage plans, or you may be covered through your state's Medicaid program if your income is low enough.

How Part D prescription drug coverage works with SSDI

Part D is optional and covers prescription medications through private insurance companies approved by Medicare. You do not enroll in Part D automatically — you must choose a plan during the annual enrollment period (October 15 to December 7 each year) or when you first become Medicare-may be able to access.

If you do not enroll in Part D when you first become Medicare-may be able to access and you do not have other creditable prescription drug coverage, you will pay a late enrollment penalty if you join later. The penalty is added to your monthly Part D premium for as long as you have the coverage. The amount of the penalty depends on how long you went without coverage.

Part D plans vary in cost and which drugs they cover. You can compare plans on Medicare.gov or call 1-800-MEDICARE to speak with someone who can help you understand your options. Many people receiving SSDI with low income may pay reduced or no Part D premiums through the Low-Income Subsidy program.

Medicaid and SSDI: how they work together

Medicaid is a separate program from Medicare, run by your state rather than the federal government. If you receive SSDI, you may also be covered by Medicaid depending on your state's rules and your income. Some states automatically enroll SSDI recipients in Medicaid; others require you to file a separate process.

In states that use the "SSI-related" pathway, SSDI recipients with income below a certain threshold (usually around $1,500 per month, though this varies by state) can receive Medicaid. Medicaid covers services that Medicare does not, including dental care, vision care, hearing aids, and long-term nursing home care. If you have both Medicare and Medicaid, Medicaid is called your "secondary" coverage and pays costs that Medicare does not cover.

To find out whether you may have access to for Medicaid in your state, contact your state Medicaid office or call 211 to be connected to your local benefits office. You can also visit your state's Medicaid website to learn the income and resource limits that explore in your area.

What happens to Medicare if your SSDI stops

If you return to work and your earnings cause your SSDI benefits to stop, your Medicare coverage does not end when ready. You have a Medicare Continuation Period that lasts for at least 8 years and 9 months after your SSDI payments stop. During this time, you can keep Medicare Part A and Part B by paying the monthly premiums yourself.

The length of your continuation period depends on how long you received SSDI before returning to work. If you worked and had SSDI reinstated within five years, you may have a longer continuation period. Social Security will send you a notice explaining your specific continuation period when your SSDI stops.

If you do not pay your Part B premium during the continuation period, your coverage will end. You can restart Part B later, but you may face a late enrollment penalty. If you become unable to work again and your SSDI is reinstated, Medicare coverage restarts automatically without a new 24-month waiting period.

Medicare Advantage and Medigap options for SSDI recipients

Medicare Advantage (Part C) is an alternative to Original Medicare (Part A and Part B). Instead of using Original Medicare, you can enroll in a Medicare Advantage plan run by a private insurance company. These plans often include prescription drug coverage (Part D) and may cover services that Original Medicare does not, such as dental or vision care. However, Medicare Advantage plans have networks of doctors and hospitals you must use, and they may have higher out-of-pocket costs for some services.

Medigap (supplemental insurance) works alongside Original Medicare. It covers some of the costs that Medicare does not pay, such as deductibles and coinsurance. Medigap plans are sold by private insurance companies and have monthly premiums in addition to your Medicare Part B premium. You can enroll in a Medigap plan during your initial enrollment period (the six months after you turn 65 or become Medicare-may be able to access) without being denied coverage or charged more based on your health.

You cannot have both Medicare Advantage and Medigap at the same time. If you have Original Medicare, you can add Medigap. If you choose Medicare Advantage, you do not need Medigap because the Advantage plan replaces Original Medicare. Compare plans on Medicare.gov or call 1-800-MEDICARE to understand which option fits your needs and budget.

How to update your Medicare information and manage your account

You can view and manage your Medicare information through your personal account on Medicare.gov. Create an account using your email address and Social Security number. From your account, you can view your coverage details, read your Medicare card, see your claims history, and check your deductible and out-of-pocket costs.

If your address, phone number, or bank account information changes, update it through your Medicare account or by calling Social Security at 1-800-772-1213. If you move to a different state, your Medicare coverage continues, but your Medicaid coverage may change because each state has different rules. Contact your new state's Medicaid office to find out what coverage you have.

If you have questions about your Medicare coverage, what is covered, or how to use your benefits, call 1-800-MEDICARE (1-800-633-4227). Representatives are available 24 hours a day, seven days a week. You can also visit Medicare.gov to find information about specific services, compare plans, or locate doctors and hospitals in your area.

Frequently Asked Questions

Do I have to pay for Medicare Part A if I am receiving SSDI?

Most people receiving SSDI do not pay a monthly premium for Part A. However, you will pay a deductible when you are admitted to the hospital and coinsurance for longer stays. If you have worked long enough to may have access to for Social Security retirement benefits, you may have Part A coverage even before your 24-month SSDI waiting period ends.

What if I do not want Medicare when it starts?

You cannot decline Medicare Part A and Part B when you become may be able to access after 24 months of SSDI. However, you can choose not to enroll in Part D (prescription drug coverage) or Medigap plans. If you decline Part D and later want to enroll, you will pay a late enrollment penalty unless you have other creditable coverage.

Can I use my Medicare outside the United States?

Medicare generally does not cover care outside the United States. However, if you are traveling in a foreign country and need emergency care, Medicare may cover limited services. Some Medigap plans cover emergency care abroad. If you plan to travel, contact your insurance company before you leave to understand what is covered.

How do I know if I may have access to for the Low-Income Subsidy for Part D?

The Low-Income Subsidy helps people with limited income pay Part D premiums and out-of-pocket drug costs. Income limits change each year, but generally you may have access to if your income is below 150% of the federal poverty level. Contact Social Security or your state Medicaid office to learn about you may have access to and how the process works.

What happens to my Medicare if I move to another country?

If you move outside the United States, your SSDI payments may stop depending on how long you are away and which country you move to. Your Medicare coverage ends if you are outside the U.S. for more than six consecutive months. Contact Social Security before you move to understand how it will affect your benefits and coverage.