You get Medicare automatically after you've been on SSDI for 24 months

When you receive Social Security Disability Insurance (SSDI), you don't have to do anything special to get Medicare—it comes with the program. After you've been approved for SSDI and have been receiving payments for 24 consecutive months, Medicare enrollment happens automatically. You'll receive your Medicare card in the mail, usually a few weeks before your 25th month of SSDI begins.

This is different from how most people get Medicare. Most people become may be able to access at age 65, but SSDI recipients can get it much earlier, regardless of age. The only requirement is that 24-month waiting period from the date your SSDI payments actually started.

You don't need to contact Social Security or Medicare to make this happen. The two programs share information, and the transition is automatic. However, it's worth understanding what Medicare covers and what it doesn't, because having Medicare doesn't mean all your medical costs are covered.

Key Takeaways

  • Medicare begins automatically 24 months after your SSDI payments start, with no action required on your part.
  • Medicare has four parts—A (hospital), B (doctor visits), D (prescriptions), and C (an alternative to A and B)—and you need to understand which parts you have.
  • You will still have out-of-pocket costs including deductibles, copayments, and coinsurance, so budgeting for medical expenses remains necessary.
  • If you work while on SSDI, your Medicare coverage continues even if your SSDI payments stop, as long as you're still disabled.

What Medicare Part A and Part B cover

Part A covers hospital stays, skilled nursing facility care, hospice, and some home health services. If you're admitted to a hospital, Part A pays most of the cost after you pay a deductible. For 2024, that deductible is $1,632 per hospital stay, though this amount changes yearly. Part A also covers up to 100 days in a skilled nursing facility in a benefit period, though you pay a daily coinsurance amount after day 20.

Part B covers doctor visits, outpatient care, medical equipment, and preventive services. Part B requires a monthly premium, which is deducted from your SSDI payment. For most people in 2024, the standard Part B premium is $174.70 per month, but the amount varies based on your income. Part B also has an annual deductible ($240 in 2024) and requires you to pay 20% coinsurance for most services after you meet the deductible.

Both parts have costs you pay out of pocket. These are separate from your SSDI payment, so you need to budget for them. If you can't afford Part B premiums or other costs, you may be able to get help through programs like Medicaid or the Medicare Savings Program, which varies by state.

Part D (prescription drug coverage) and how to choose a plan

Part D is optional prescription drug coverage. You're not automatically enrolled in Part D when you get Medicare, so you need to choose a plan during your enrollment period. If you don't choose a plan when you first become may be able to access and you go without coverage, you may pay a penalty if you enroll later.

Part D plans are offered by private insurance companies approved by Medicare. Each plan has a different list of covered drugs, different costs, and different pharmacies you can use. You can compare plans on Medicare.gov or call 1-800-MEDICARE to get help choosing one. Plans change every year, so even if you had Part D last year, you should review your options each fall during the annual enrollment period (October 15 to December 7).

Part D has its own costs: a monthly premium, an annual deductible (which varies by plan), and copayments or coinsurance when you fill prescriptions. There's also a coverage gap called the "donut hole" where you pay more out of pocket once you've spent a certain amount on drugs, though this gap has been shrinking in recent years.

Part C (Medicare Advantage) as an alternative to Part A and B

Instead of traditional Medicare (Part A and B), you can choose Part C, also called Medicare Advantage. Part C is an all-in-one plan offered by private insurance companies. It includes hospital coverage (Part A), doctor coverage (Part B), and usually prescription drug coverage (Part D) all in one plan.

Medicare Advantage plans often have lower monthly premiums than traditional Medicare Part B, and some have zero premium. However, they typically have higher out-of-pocket costs when you use services. They also usually require you to use doctors and hospitals in their network, and many require referrals to see specialists. If you travel frequently or live in multiple states, this can be a problem.

You can switch between traditional Medicare and Medicare Advantage during the annual enrollment period each fall, or during the Medicare Advantage Open Enrollment Period (January 1 to March 31). If you're thinking about switching, compare the plans available in your area carefully, because coverage and costs change every year.

Your out-of-pocket costs and how to budget for them

Having Medicare means you're insured, but it doesn't mean your medical care is free. You'll pay deductibles (a set amount before Medicare starts paying), copayments (a fixed amount per visit or service), and coinsurance (a percentage of the cost). These add up, especially if you have ongoing medical needs or take multiple medications.

In addition to Medicare costs, you may also want supplemental insurance, called Medigap, which covers some of the costs that Medicare doesn't. Medigap is optional and is sold by private insurance companies. It has its own monthly premium, but it can reduce your out-of-pocket costs significantly. You have a six-month window to buy Medigap without medical underwriting—starting the month you turn 65 or the month you enroll in Medicare Part B, whichever is later. After that window, insurance companies can deny you or charge more based on your health.

If your income is low, Medicaid (a separate program from Medicare) may help pay your Medicare premiums and out-of-pocket costs. Medicaid is run by states, so what's available depends on where you live. You can contact your state Medicaid office or call 211 to find out what programs might help you.

What happens to your Medicare if you work or your SSDI stops

One of the biggest advantages of SSDI is that once you've been on it for 24 months and have Medicare, your Medicare coverage continues even if your SSDI payments stop. This is true if you return to work and your earnings are too high to continue receiving SSDI payments. You keep Medicare for as long as you remain disabled, even if you're earning money.

This protection lasts for a specific period. If your SSDI payments stop because of work, you can continue Medicare for up to 93 months (about 7.75 years) after your payments end, as long as you remain disabled. After that period ends, you can keep Medicare by paying the full premium yourself, or you may become may be able to access for regular Medicare at age 65.

If your SSDI stops for a reason other than work—such as a medical improvement—your Medicare coverage also stops. You would have a grace period to switch to another type of coverage, such as coverage through an employer or the marketplace, to avoid a gap in insurance.

Preventive services covered at no cost

Medicare Part B covers certain preventive services at no cost to you—meaning you don't pay the deductible or coinsurance. These include annual wellness visits, cancer screenings (mammograms, colonoscopies, cervical cancer screenings), cardiovascular screenings, diabetes screenings, bone density tests, and vaccinations like the flu shot and pneumonia vaccine.

To get these services at no cost, you need to use a provider who accepts Medicare and bills it as a preventive service. If your doctor adds other services to your visit—such as treating a specific problem—you may have to pay for those additional services. Ask your doctor before your visit whether the preventive service will be billed as preventive only, or whether you should expect other charges.

Taking advantage of these free preventive services is a good way to catch health problems early and manage chronic conditions. Since you have Medicare, using these services doesn't cost you anything extra.

Frequently Asked Questions

Do I have to pay for Medicare when I get it on SSDI?

Part A (hospital coverage) is free. Part B (doctor coverage) has a monthly premium that's deducted from your SSDI payment—usually $174.70 per month in 2024, though it varies by income. Part D (prescription drugs) is optional and has its own premium if you choose it. You also pay deductibles and coinsurance when you use services.

What if I can't afford my Medicare premiums and costs?

If your income is low, you may may have access to for Medicaid, the Medicare Savings Program, or other state programs that help pay premiums and out-of-pocket costs. Call your state Medicaid office or dial 211 to find out what programs are available where you live. These programs have income limits that vary by state.

Can I use any doctor once I have Medicare?

With traditional Medicare (Part A and B), you can see any doctor who accepts Medicare—you don't need a referral. With Medicare Advantage (Part C), you usually have to use doctors in the plan's network and may need referrals. Check your plan documents to understand which doctors and hospitals you can use.

What if I disagree with a Medicare decision about what it will pay for?

You have the right to appeal. Medicare will send you a notice explaining why it denied coverage or payment. The notice includes instructions on how to appeal. You can also call 1-800-MEDICARE to ask questions about a decision before you formally appeal.

Does Medicare cover dental, vision, or hearing?

Traditional Medicare (Part A and B) does not cover routine dental, vision, or hearing services. Some Medicare Advantage plans include these benefits, though coverage is usually limited. You can buy separate dental, vision, and hearing insurance, or pay out of pocket for these services.