How Dual Eligibility Works When You're Under 65

What dual may be able to access means and who qualifies

Dual may be able to access means you have both Medicare and Medicaid at the same time. For people under 65, this almost always happens because you have Medicare through disability (SSDI or SSI) and your income is low enough that your state's Medicaid program covers you too. You don't choose to be dual-may be able to access — it happens automatically once both programs determine you meet their rules.

The key difference from being on just one program: Medicare covers hospital stays, doctor visits, and some prescription drugs, while Medicaid covers services Medicare doesn't, like long-term care, dental, and vision. When you're dual-may be able to access, both programs work together, with Medicaid often filling in gaps and paying Medicare's cost-sharing (copays, coinsurance, deductibles).

Your state determines the exact income and resource limits for Medicaid, so what makes you dual-may be able to access in one state might not in another. Generally, if you receive SSI (Supplemental Security Income), you're automatically Medicaid-may be able to access in most states. If you receive SSDI (Social Security Disability Insurance) but not SSI, your state's Medicaid program looks at your income separately.

Key Takeaways

• Dual may be able to access happens automatically when you may have access to for both Medicare through disability and Medicaid through your state — you don't need to do anything extra to "become" dual-may be able to access.
• If you receive SSI, you're almost certainly already Medicaid-may be able to access in your state, which means you're dual-may be able to access once your Medicare starts.
• If you receive SSDI without SSI, contact your state Medicaid office to find out whether your income qualifies you for Medicaid coverage.
• Your state Medicaid program pays many of Medicare's out-of-pocket costs, which is why dual may be able to access significantly reduces what you pay for medical care.
• Dual-may be able to access people under 65 are sometimes called "working-age dual-may be able to access" and may have access to programs designed specifically for your age group.

How to learn about you're already dual-may be able to access

Start by checking your Medicare card. If you have a red, white, and blue Medicare card, you have Medicare. Next, find out whether you also have Medicaid. The fastest way is to call your state Medicaid office directly — they can tell you in one call whether Medicaid is active on your Social Security number.

You can find your state Medicaid office phone number through Medicaid.gov (select your state from the map) or by calling 211, which connects you to local health and human services. Have your Social Security number ready when you call. If you're already receiving SSI, you can also ask your SSI case manager whether Medicaid is on your account — they often know immediately.

If you have Medicare but no Medicaid yet, your state Medicaid office will tell you what income and resource limits apply and what documents you need to provide. Some states have simplified processes for people already receiving SSDI or SSI; others require a separate Medicaid application.

Applying for Medicaid if you don't have it yet

If you have Medicare through disability but your state hasn't automatically enrolled you in Medicaid, you'll need to contact your state Medicaid office to start the process. Most states now allow online applications through their Medicaid website, though you can also apply by phone, mail, or in person at a local office.

What you'll need depends on your state, but typically includes: proof of citizenship or immigration status, proof of income (recent pay stubs, SSA award letter, or tax return), proof of resources (bank statements), and proof of disability (your Medicare card or SSA award letter). Some states waive certain documents if you're already receiving SSI or SSDI.

Processing time varies by state — some take two to three weeks, others take longer. If your state has a backlog, ask whether you can receive emergency Medicaid coverage while your application is being reviewed. Some states cover hospital and emergency services during the wait.

What dual may be able to access covers that Medicare alone doesn't

Medicare covers inpatient hospital care, skilled nursing facility stays (up to 100 days per benefit period), doctor visits, lab work, imaging, and some prescription drugs. It does not cover dental, vision, hearing aids, long-term custodial care, or most rehabilitation services beyond the skilled nursing benefit.

Medicaid fills many of those gaps. In most states, Medicaid covers dental care, routine eye exams and glasses, hearing aids, and long-term care in a nursing home or assisted living facility. Medicaid also covers services like occupational therapy, physical therapy, and speech therapy that Medicare limits or doesn't cover at all.

Equally important: Medicaid pays many of Medicare's out-of-pocket costs. If Medicare requires you to pay a copay, coinsurance, or a deductible, Medicaid often covers that amount. This is called "cost-sharing" coverage, and it's one of the biggest financial benefits of dual may be able to access.

How your prescriptions work when you're dual-may be able to access

Both Medicare and Medicaid cover prescription drugs, but they coordinate differently depending on your state. In most cases, Medicare's drug plan (Part D) is the primary payer, meaning it covers the drug first. Medicaid then covers what Medicare doesn't, including any copays or coinsurance Medicare requires.

You still need to enroll in a Medicare Part D plan, even though Medicaid will help pay. When you choose a Part D plan, pick one that your state's Medicaid program works well with — your state Medicaid office can tell you which plans coordinate smoothly. Some states have preferred drug lists that align with specific Part D plans.

If a drug isn't covered by your Part D plan, Medicaid may cover it separately, but you'll need to ask your pharmacy or doctor to request an exception. This process takes a few days, so it's worth checking your plan's formulary (list of covered drugs) before you need a new prescription.

Managed care and dual-may be able to access programs in your state

Many states require dual-may be able to access people to enroll in a managed care plan — a single insurance plan that handles both your Medicare and Medicaid benefits. This is different from Original Medicare (fee-for-service), where you can see any doctor who accepts Medicare.

In a managed care plan, you choose a primary care doctor and usually need referrals to see specialists. The plan coordinates your care and often covers extra services that Original Medicare and Medicaid don't, like transportation to medical appointments or over-the-counter health items. Some plans also offer programs specifically for working-age dual-may be able to access people, with care coordinators who help manage complex medical needs.

If your state requires managed care enrollment, you'll receive information about available plans in the mail. You can usually choose which plan to join, or your state will assign you to one if you don't choose. Ask your state Medicaid office which plans serve your area and what extra benefits each one offers.

What changes if your income or disability status changes

If your income increases — through work, a raise, or a change in benefits — you may lose Medicaid may be able to access while keeping Medicare. This is called "losing dual" and it happens when your income exceeds your state's Medicaid limit. Some states have work incentive programs that let you keep Medicaid even if you earn more, so ask your state Medicaid office about programs like Medicaid Buy-In or Impairment Related Work Expenses (IRWE).

If your disability status changes — for example, if Social Security determines you're no longer disabled and stops your SSDI — you'll lose Medicare. Your Medicaid status depends on your state and your income at that point. Contact both Social Security and your state Medicaid office immediately if this happens, because there may be a transition period where you keep coverage while you appeal or look for other options.

If you move to a different state, your dual may be able to access doesn't automatically transfer. Contact your new state's Medicaid office as soon as you arrive to find out whether you still may have access to and what the application process is. Some states have higher income limits than others, so you might lose Medicaid may be able to access by moving even if your income hasn't changed.

Frequently Asked Questions

Do I have to pay premiums for Medicaid if I'm dual-may be able to access?

In most states, dual-may be able to access people don't pay Medicaid premiums. However, you still pay Medicare Part B premiums (usually deducted from your Social Security check). Some states charge small premiums for certain services, so ask your state Medicaid office about any costs you might owe.

Can I choose Original Medicare instead of a managed care plan?

It depends on your state. Some states allow dual-may be able to access people to stay in Original Medicare, while others require managed care enrollment. Ask your state Medicaid office what your options are. If you're required to enroll in managed care but want to try Original Medicare, ask whether you can switch during the annual enrollment period.

What happens to my Medicaid if I go back to work?

It depends on how much you earn and your state's rules. If you earn above your state's Medicaid income limit, you may lose Medicaid coverage. However, many states have work incentive programs that let you keep Medicaid while working — ask your state Medicaid office about Medicaid Buy-In, IRWE, or Plan to Achieve Self-Support (PASS) programs.

Do I need to report changes to both Medicare and Medicaid?

Yes. If your income, address, or household changes, report it to both your state Medicaid office and Social Security. Changes that affect one program often affect the other, and reporting to both keeps your coverage accurate and prevents overpayments or coverage gaps.

What if I disagree with a decision about my dual may be able to access?

You have the right to appeal any decision by Medicare or Medicaid. Your state Medicaid office will explain your appeal rights when they make a decision. For Medicare appeals, contact Medicare directly at 1-800-MEDICARE. Keep copies of all letters and documents related to your case.