Medicaid is the largest source of health coverage in the country, and it covers a great deal, from hospital stays and doctor visits to prescriptions, long-term care, and children’s dental. But because it is run by each state within federal rules, exactly what is covered depends on where you live. This guide gives a clear overview of what Medicaid covers everywhere, what varies by state, and why children get the broadest coverage of all. Coverage varies by state, so verify current details before relying on them.
The Short Answer
Medicaid covers a core set of benefits in every state, required by federal law, plus a range of optional benefits that each state chooses. Children under 21 receive especially comprehensive coverage through a rule called EPSDT. The result is a large common core of coverage nationwide, with meaningful differences at the edges, particularly for adult dental, vision, and therapy.
Benefits Every State Must Cover
Federal law requires all states to cover a set of mandatory benefits. These include inpatient and outpatient hospital care, physician services, laboratory and X-ray services, home health services, and nursing facility care for adults. They also include family planning services, Federally Qualified Health Center and rural health clinic services, nurse midwife and pediatric nurse practitioner services, and transportation to medical care, known as non-emergency medical transportation. Other required benefits include medication-assisted treatment for substance use, tobacco cessation counseling for pregnant women, and the EPSDT benefit for children. This mandatory core is why Medicaid coverage looks broadly similar from state to state for major medical needs.
Benefits States Can Choose
Beyond the required core, states may add optional benefits, and most do, though the scope varies. The most important is prescription drug coverage, which is technically optional but which every state provides. Other common optional benefits include dental services and dentures, eyeglasses and vision care, physical, occupational, and speech therapy, hospice, prosthetics, personal care and home- and community-based services, private duty nursing, and case management. Because these are optional, this is where state-to-state differences show up most. Adult dental, for instance, ranges from comprehensive in some states to emergency-only or nonexistent in others.
Why Children Get the Broadest Coverage
The single most important thing to understand about Medicaid coverage is EPSDT, which stands for Early and Periodic Screening, Diagnostic and Treatment. For enrollees under 21, states must cover any medically necessary service to correct or improve a condition, even services that are optional or not covered for adults in that state. That means children’s Medicaid includes comprehensive checkups, dental, vision, hearing, mental health, and treatment of anything found during a screening. If a child needs a medically necessary service, Medicaid must cover it.
Mental Health and Substance Use
Medicaid is the single largest payer of mental health services in the United States. Coverage is delivered through a mix of required and optional categories and typically includes outpatient therapy, psychiatric care, crisis services, and substance-use treatment, with medication-assisted treatment being a mandatory benefit. For children, medically necessary behavioral health care is guaranteed under EPSDT. Parity rules generally prevent mental health benefits from being more restrictive than medical benefits.
Long-Term Care
Medicaid is also the largest payer of long-term care in the country. It covers nursing facility care, including room, board, and care, as a mandatory benefit for those who qualify financially and medically, and many states cover home- and community-based services that help people receive care at home instead. This is a major role that Medicare does not fill, which is why Medicaid is central to long-term care planning.
Common Gaps and Limits
Medicaid does not cover everything. Cosmetic procedures, most infertility treatment, and experimental care are generally excluded, and coverage is limited to medically necessary services within each state’s amount, duration, and scope rules. Adult dental and vision are optional and can be limited. Care from providers not enrolled in Medicaid, and care received outside the United States, is generally not covered. For a fuller picture, see our guide to what Medicaid does not cover.
How to Apply and Check Your Benefits
You can apply for Medicaid any time of year, with no open enrollment period, through your state Medicaid agency or through HealthCare.gov, which screens you for both Medicaid and Marketplace coverage. Once enrolled, review your state’s covered-services list or your managed care plan’s member handbook to see exactly what your state includes, since the optional benefits are where the details matter most.
Prescription Drugs Under Medicaid
Medicaid covers prescription drugs in every state. This is one of its most used benefits.
States keep a list of covered drugs, called a formulary. Copays are usually very low or zero. If a drug you need is not covered, your doctor can often request an exception. Ask your Medicaid plan how to handle a drug that is not on the list.
How to Check What Your State Covers
Because states differ, your exact benefits depend on where you live. It is worth confirming the details.
Check your state Medicaid website or member handbook for covered services. You can also call your Medicaid plan’s member line. Ask specifically about any service you expect to need, such as dental, vision, or therapy. Knowing your benefits upfront prevents surprise bills.
What Medicaid Covers FAQs
Does Medicaid cover prescription drugs?
Yes, in every state, though it is technically an optional benefit. Each state has its own preferred drug list.
Does Medicaid cover dental for adults?
It varies by state and is often limited. Children’s dental is guaranteed under EPSDT.
Is coverage the same in every state?
No. The mandatory benefits are universal, but optional benefits and their scope differ by state.
What do children get?
Comprehensive coverage through EPSDT, including checkups, dental, vision, hearing, and all medically necessary treatment.
Does Medicaid pay for rides to the doctor?
Yes. Non-emergency medical transportation is a mandatory benefit for those with no other way to get to covered care.
Does Medicaid cover long-term care?
Yes. It is the largest payer of nursing-home care and many home- and community-based services for those who qualify.
When can I apply?
Any time of year. Medicaid has no open enrollment period.
