What Medicaid is and how it connects to Social Security

Medicaid is a joint federal and state health insurance program for people with low income. It is separate from Social Security itself, but many people who receive Social Security payments — particularly those on Supplemental Security Income (SSI) or Social Security Disability Insurance (SSDI) — also receive Medicaid. The connection exists because both programs use income and resource limits to determine who qualifies, and in most states, receiving one benefit makes you automatically may be able to access for the other.

The key difference: Social Security is a federal program that pays you cash based on your work history or disability status. Medicaid is a health insurance program that pays medical providers directly. You can have one without the other, but the income thresholds are often low enough that people on Social Security payments fall within Medicaid's limits.

How they connect depends on which Social Security program you are on. If you receive SSI (Supplemental Security Income), you are almost certainly may be able to access for Medicaid in your state — in fact, in many states, SSI enrollment automatically enrolls you in Medicaid. If you receive SSDI (Social Security Disability Insurance), you may or may not may have access to for Medicaid, depending on your income and your state's rules.

Key Takeaways

  • SSI recipients are usually automatically enrolled in Medicaid or can enroll with minimal paperwork, because SSI's income limits are already very low.
  • SSDI recipients may may have access to for Medicaid depending on their income and state rules; some states use SSDI income limits, others use their own.
  • Medicaid covers doctor visits, hospital care, prescription drugs, and long-term care services that Medicare does not cover.
  • Your Medicaid coverage can change if your Social Security income increases, so you must report changes to both programs.
  • Each state runs its own Medicaid program with different income limits and covered services, so what you get depends on where you live.

SSI and automatic Medicaid enrollment

If you receive SSI, you are in one of the easiest paths to Medicaid. SSI's federal income limit is $943 per month for an individual (as of 2024, though this amount changes yearly). Because that threshold is so low, most SSI recipients fall well below their state's Medicaid income limit.

In most states, SSI enrollment triggers Medicaid enrollment automatically — you do not need to file a separate application. When you apply for SSI at your local Social Security office, the Social Security Administration shares your information with your state's Medicaid agency, and Medicaid coverage begins the same month your SSI payments start. A few states (Connecticut, Illinois, Mississippi, Missouri, and New Hampshire) require you to file a separate Medicaid application even if you receive SSI, so contact your state Medicaid office to confirm.

Your Medicaid card should arrive within one to two weeks of your SSI approval. If you do not receive it, call your state Medicaid office — the number is on your SSI approval letter or on your state's Medicaid website.

SSDI and Medicaid may be able to access rules by state

SSDI recipients face a more complicated picture because Medicaid rules vary by state. SSDI itself has no income limit — you can earn as much as you want and still receive SSDI payments. But Medicaid does have income limits, and those limits differ depending on your state and sometimes on when you became disabled.

Most states use one of two approaches. Some states use the federal SSI income limit ($943 per month) as their Medicaid threshold for SSDI recipients — if your SSDI payment is below that, you may have access to. Other states use their own, higher income limits. A few states use a "Section 1619(b)" rule, which allows SSDI recipients to keep Medicaid even if their income rises above the limit, as long as they remain disabled and would need Medicaid to work.

To find out whether you may have access to in your state, contact your state Medicaid office directly. You can find the number on your state's Medicaid website or by calling 211. Have your SSDI award letter ready — the office will need to see your monthly benefit amount.

What Medicaid covers that Medicare does not

Many people on Social Security receive both Medicare (the federal health insurance for people 65 and older, or some people on SSDI) and Medicaid. The two programs work together, with Medicare as the primary payer and Medicaid filling in gaps. Medicaid covers several things Medicare does not: dental care, vision care, hearing aids, and long-term nursing home or home care services.

If you have only Medicaid and no Medicare, your coverage still includes doctor visits, hospital stays, emergency care, prescription drugs, mental health services, and preventive care like screenings and vaccinations. The exact list of covered services varies by state — some states cover more than others. Your state Medicaid office or your Medicaid card should list what is covered, or you can ask when you call to confirm your coverage.

Medicaid also covers work-related services for people on SSDI who want to return to work, including vocational rehabilitation and work incentives that let you earn money without losing your benefits immediately. These programs have specific names and rules depending on your state.

Reporting income changes and keeping your coverage

Both Social Security and Medicaid require you to report changes in your income or living situation. If your circumstances change — you get a job, move in with someone, receive money from another source, or your Social Security payment amount changes — you must tell both programs. Failing to report can result in overpayments you have to repay, or loss of coverage.

For Social Security, call your local Social Security office or report changes online at ssa.gov. For Medicaid, contact your state Medicaid office. The two programs do not always share information in real time, so you may need to report to each one separately. Keep records of what you reported and when, in case there is a dispute later.

If your income rises above your state's Medicaid limit, you may lose Medicaid coverage. However, some states have "spend-down" programs that let you keep Medicaid if you spend the extra income on medical bills. Ask your Medicaid office whether your state has this option.

How to apply for Medicaid if you are on Social Security

If you are on SSI and were not automatically enrolled in Medicaid, or if you are on SSDI and think you may may have access to, you can file a Medicaid application with your state. Most states let you apply online through their Medicaid website, by mail, or in person at your local Medicaid office. Some states use a single application for all benefits (SNAP, Medicaid, TANF), which you can file at once.

You will need to provide proof of income (your Social Security award letter), proof of identity, and proof of where you live. The process usually takes 30 to 45 days. If you are denied, you have the right to request a hearing to appeal the decision. Your state Medicaid office will explain how to appeal in the denial letter.

If you need help with the application, contact your local Area Agency on Aging (if you are 60 or older), a disability rights organization in your state, or call 211 for a referral to free application help.

State-by-state differences in Medicaid and Social Security

Medicaid is not the same everywhere. Income limits, covered services, and how quickly you receive a card all vary by state. For example, some states cover dental care for adults; others do not. Some states cover hearing aids; others do not. Some states have higher income limits than others, which means more SSDI recipients may have access to.

Before you assume you do not may have access to, or that a service is not covered, check with your state Medicaid office. You can find contact information on your state's Medicaid website or by searching "[your state] Medicaid" online. Many state Medicaid offices have staff who specialize in helping people on Social Security, and they can answer questions about your specific situation faster than a general phone line.

Frequently Asked Questions

If I am on SSDI and get a job, will I lose Medicaid?

Not automatically. SSDI has work incentives that let you earn money without losing benefits right away. Your Medicaid coverage depends on your state's income limit and whether you stay below it. Some states have "Section 1619(b)" protection, which keeps your Medicaid even if your income rises, as long as you remain disabled. Contact your state Medicaid office to understand your state's rules before you start working.

Can I have Medicaid and Medicare at the same time?

Yes. Many people on Social Security have both. Medicare is primary, meaning it pays first, and Medicaid fills in gaps like copays and covers services Medicare does not, such as dental and long-term care. If you have both, always show your Medicare card first at the doctor's office, then your Medicaid card.

What happens to my Medicaid if my Social Security payment increases?

It depends on your state and which Social Security program you are on. If you are on SSI and your payment increases above the federal limit, you may lose Medicaid in some states. If you are on SSDI, your state's rules determine whether the increase affects your coverage. Report any increase to both Social Security and Medicaid immediately so they can tell you whether your coverage changes.

How do I know if my state automatically enrolls SSI recipients in Medicaid?

Call your state Medicaid office and ask. Five states (Connecticut, Illinois, Mississippi, Missouri, and New Hampshire) require a separate Medicaid application even for SSI recipients. All other states enroll SSI recipients automatically. Your state Medicaid office can confirm whether you need to file an application or whether you are already covered.

Can I use Medicaid from one state if I move to another?

No. Medicaid is state-based, so your coverage ends when you move. You must apply for Medicaid in your new state. Contact your new state's Medicaid office as soon as you move to start the process. Some states have expedited enrollment for people moving from out of state, so ask whether your new state offers that.