Medicaid pays for medical care for people with low income
Medicaid is a joint federal and state insurance program that covers doctor visits, hospital stays, prescription drugs, and other medical services for people whose income falls below a certain threshold. It is not Medicare (which is for people 65 and older), and it is not a loan you repay. Once you are enrolled, Medicaid covers the cost of the services it includes; you pay nothing or a small copay depending on your state and the service.
Each state runs its own Medicaid program within federal rules, so what Medicaid covers and who qualifies varies by state. A person who qualifies in one state may not may have access to in another. The program exists because medical bills are the leading cause of bankruptcy for working-age adults, and Medicaid removes that risk for people below the income line.
Medicaid is the largest source of health insurance in the United States by number of people covered. It covers roughly one in five Americans, including children, pregnant people, parents, elderly people, and people with disabilities.
Key Takeaways
- Medicaid covers doctor visits, hospital care, prescription drugs, mental health services, and emergency room visits for people with low income.
- Each state sets its own income limits and decides which services to cover beyond the federal minimum, so coverage differs by state.
- You do not repay Medicaid; it is insurance, not a loan or grant.
- Medicaid covers preventive care (checkups, vaccines, screenings) at no cost to you in most states.
- Enrollment is open year-round in most states, unlike private insurance, which has annual open enrollment periods.
What services Medicaid covers
Medicaid must cover certain core services in every state: doctor visits, hospital inpatient and outpatient care, lab work, X-rays, emergency services, and family planning. Beyond that, states choose what else to cover. Most states cover prescription drugs, mental health and substance use treatment, dental care for children, and vision care. Some states cover dental and vision for adults; others do not.
Medicaid also covers services that private insurance often does not: long-term care in nursing homes, home health aides, transportation to medical appointments, and behavioral health services. This is why Medicaid is often the only insurance option for people who need ongoing care at home or in a facility.
Preventive services—annual checkups, vaccines, cancer screenings, cholesterol tests—are covered at no cost to you in all states. This means you can see a doctor for a checkup without paying anything out of pocket, which is different from private insurance plans that may charge a copay even for preventive visits.
Who Medicaid is designed to serve
Medicaid serves people in four main groups: children in low-income households, pregnant people and new parents, elderly people with low income, and people with disabilities. Within each group, income limits apply. A family of three might may have access to in one state at a household income of $2,000 per month and not may have access to in another state at the same income.
Some people are categorically may be able to access, meaning their status alone qualifies them: children under 19 in households below the federal poverty line, pregnant people, people receiving Supplemental Security Income (SSI), and people receiving Temporary Assistance for Needy Families (TANF). Others are medically needy, meaning they have high medical bills that reduce their countable income below the state limit.
Medicaid also serves working people. Many states cover people who work but earn too little to afford private insurance. Income limits vary widely—some states cover a single adult earning up to $18,000 per year; others cover up to $30,000 or more. Your state's website or a local health department can tell you the exact limit for your household size and situation.
How Medicaid differs from private insurance
Private insurance is sold by companies and usually tied to employment. Medicaid is government-run and free or very low-cost. Private insurance has annual open enrollment periods (usually November through January); Medicaid enrollment is open year-round in most states, and you can enroll any time your income or household changes.
Private insurance often requires you to pay a premium (monthly fee), a deductible (amount you pay before insurance kicks in), and copays for each visit. Medicaid typically has no premium and no deductible. You may pay a small copay—usually $1 to $3 per visit—but many services are free, especially for children and pregnant people.
Private insurance networks are narrower: you choose a plan and can only see doctors in that plan's network. Medicaid networks are broader in most states, and you can usually see any doctor who accepts Medicaid. If you lose your job, private insurance ends; Medicaid continues as long as your income stays below the limit.
How Medicaid is funded
Medicaid is funded by federal and state taxes. The federal government pays between 50 and 75 percent of the cost depending on the state's wealth; the state pays the rest. This is why Medicaid is called a "joint" program—neither level of government runs it alone.
When you use Medicaid, you are using tax dollars that have already been collected. You do not pay into Medicaid through payroll deductions the way you do with Social Security or Medicare. Medicaid is a needs-based program: it exists to cover people who cannot afford to pay for medical care themselves.
What happens after you enroll
Once you are enrolled, you receive a Medicaid card (physical or digital, depending on your state). You show this card to your doctor, hospital, or pharmacy. The provider bills Medicaid directly. You pay nothing unless the service has a copay, which your state determines.
Your enrollment is usually good for one year. Your state will send you a renewal notice before your coverage ends. If your income or household size changes during the year, you can report the change and your coverage will adjust. If your income rises above the state limit, your Medicaid ends, though most states give you a grace period to find other insurance.
You can use Medicaid at any hospital, clinic, or doctor's office that accepts it. In rural areas or small towns, fewer providers may accept Medicaid, so it is worth checking before you enroll whether your preferred doctor takes it.
Medicaid and other programs
Medicaid works alongside other programs. If you receive SSI (Supplemental Security Income) or TANF (Temporary Assistance for Needy Families), you are usually automatically enrolled in Medicaid. If you receive SNAP (food assistance), you may be able to enroll in Medicaid through the same office.
If you are 65 or older and have low income, you may be enrolled in both Medicaid and Medicare. Medicare is federal insurance for people 65 and up; Medicaid fills in gaps that Medicare does not cover, like long-term care and dental care. This combination is sometimes called "dual may be able to access."
Medicaid does not affect your ability to work or receive other benefits. Having Medicaid does not reduce your income or make you ineligible for other programs. It is designed to work alongside other assistance, not replace it.
Frequently Asked Questions
Does Medicaid cover everything a doctor recommends?
Medicaid covers most standard medical care, but not everything. It does not cover cosmetic procedures, fertility treatments, or some experimental drugs. Your state Medicaid program publishes a list of covered services. If your doctor recommends something and you are unsure whether Medicaid covers it, call the number on your Medicaid card and ask before the appointment.
Can I use Medicaid at any hospital or doctor?
You can use Medicaid at any provider who accepts it. Most hospitals and clinics do, but not all private practices or specialists do. Before you schedule an appointment, call the office and ask if they take Medicaid. If they do not, they will not bill Medicaid and you will owe the full cost.
What is the difference between Medicaid and Medicare?
Medicare is federal insurance for people 65 and older, regardless of income. Medicaid is for people of any age with low income. You pay into Medicare through payroll taxes during your working years; Medicaid is funded by general taxes and is free to those who may have access to. A person can have both if they are 65 or older with low income.
Does Medicaid cover mental health and addiction treatment?
Yes. Medicaid must cover mental health services and substance use treatment in every state. This includes therapy, psychiatry, medication, and inpatient or outpatient rehab. Coverage details vary by state, but mental health is a core Medicaid benefit, not an optional add-on.
Will Medicaid take money back if my income increases?
No. Medicaid does not claw back or reclaim money if your income rises. If your income goes above the state limit, your Medicaid ends, but you do not owe anything for the coverage you received while you were enrolled. You will need to find other insurance, but there is no debt or repayment.