Learn How Medicaid Works and Coverage Options

What Is Medicaid and Who It Serves

Medicaid is a government health insurance program jointly managed by the federal government and individual states. Unlike Medicare, which is primarily for people age 65 and older, Medicaid serves low-income individuals and families of all ages. The program was created in 1965 and has grown to cover over 72 million Americans as of 2023, making it one of the largest health insurance programs in the United States.

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Each state operates its own Medicaid program within federal guidelines, which means coverage rules, income limits, and covered services vary significantly from state to state. For example, a family that meets Medicaid income requirements in one state might not in another. This guide focuses on explaining how the program works generally, but you'll need to look at your specific state's rules for details about what's available where you live.

Medicaid covers a diverse population. It provides coverage to pregnant women, children, parents, seniors, and individuals with disabilities. Some states have expanded Medicaid to cover more working-age adults, while others have not. The program pays for a wide range of medical services, including doctor visits, hospital stays, prescription medications, preventive care, mental health services, and long-term care in some cases.

The program operates on a categorical basis, meaning you generally must fit into a specific category to be considered for coverage. These categories include children, pregnant women, parents of minor children, seniors, individuals with disabilities, and in expansion states, some working-age adults without children. Understanding which category you might fit into is an important first step in understanding what options may be available to you.

Practical takeaway: Medicaid coverage varies by state, so the first step is learning about your state's specific program rules, income limits, and covered services. Contact your state Medicaid office or visit your state's health department website to find information specific to your location.

Income Limits and How States Calculate Them

Income limits are one of the primary factors that determine who can receive Medicaid coverage. These limits are set as a percentage of the Federal Poverty Level (FPL), which is adjusted annually for inflation. In 2024, the federal poverty level for a single person is approximately $14,600 annually, and for a family of four, it's about $30,000 per year. However, Medicaid income limits often extend well beyond these figures.

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States set their own income thresholds within federal guidelines. Most states cover children at income levels up to 200% of the Federal Poverty Level, meaning a family of four with income around $60,000 might still qualify for child coverage. Pregnant women and new mothers often have higher income limits than other groups. Some states cover adults at 100% of FPL, while expansion states cover working-age adults without children at up to 138% of FPL.

When calculating income, states typically count gross monthly income from employment, benefits, and other sources. However, they usually apply deductions before comparing your income to the limit. These deductions might include taxes, child care costs, or a standard disregard amount. For example, if you earn $2,000 per month but have $400 in childcare expenses and a $65 standard deduction, your countable income might be around $1,535.

The relationship between income and benefit level matters too. In some programs, higher income within the limit results in higher out-of-pocket costs. Many states use a sliding scale where families with income closer to the limit pay monthly premiums or have higher copayments, while those with lower incomes have minimal or no cost-sharing. Some very low-income families pay nothing at all.

Practical takeaway: Write down your household's monthly gross income and list all household members. Then visit your state's Medicaid website to find the current income limits for each group (children, pregnant women, parents, adults). Compare your household income to these limits to understand what programs might be worth learning more about.

Categories of Coverage and Who Falls Into Each

Medicaid operates through distinct eligibility categories, each with different income limits and rules. Understanding these categories helps clarify what coverage options may exist for different people in your household, since family members in different categories can have different income limits.

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The children's category is one of the largest. All states must cover children under age 19 at income levels of at least 133% of Federal Poverty Level, but many states cover children at much higher income levels, sometimes up to 400% of FPL. This means a teenager might be covered even if their family's income is well above what would qualify an adult. In 2023, approximately 29 million children received Medicaid coverage.

The pregnant women and postpartum category provides coverage during pregnancy and typically for 60 days after delivery in most states, though some states have expanded this period. Income limits for pregnant women are often higher than for other categories. A pregnant woman might qualify for Medicaid even if her family's overall income would be slightly over the limit for other groups. After delivery, coverage typically ends unless the woman falls into another category, such as parent of a minor child.

The parents and caretakers category covers parents who care for dependent children. Income limits for this group vary widely by state—some states set limits at 100% of FPL while others go much higher. In expansion states, this category has largely been replaced by the adult category for working-age individuals. Caretakers might include grandparents, aunts, uncles, or other relatives caring for children.

The seniors and individuals with disabilities category covers people age 65 and older and working-age people with disabilities or blindness. This group often has different income limits and rules than other categories. Some individuals in this category may have limited income from Social Security but still qualify. States must cover certain elderly and disabled individuals, though the income limits vary.

In the 21 states that have expanded Medicaid as of 2024, the adult category covers working-age adults without children at income levels up to 138% of Federal Poverty Level. This expansion has covered millions of adults who previously had no options for Medicaid coverage. In non-expansion states, working-age adults without children generally have very limited Medicaid options unless they have a disability.

Practical takeaway: List each household member and their age or disability status. Then match each person to a category (child, pregnant woman, parent, elderly, disabled, or adult in an expansion state). Look up the income limits for each category in your state to see which people in your household might have coverage options.

Coverage Details: What Medicaid Pays For

Medicaid covers a broad range of health care services, though the exact services vary by state and sometimes by the specific program within a state. Understanding what's typically covered helps you know what out-of-pocket costs to expect and when to use your Medicaid coverage.

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Core covered services include doctor visits, hospital stays, emergency room care, laboratory tests, and X-rays. These inpatient and outpatient services are required in all state Medicaid programs. A person covered by Medicaid can visit their doctor for routine check-ups, treatment for illness or injury, and follow-up care without needing to pay the full cost themselves. Hospital stays for surgery, childbirth, or serious illness are covered, as are emergency room visits for acute medical problems.

Preventive care is an important component of Medicaid coverage. All Medicaid programs cover certain preventive services at no cost, including childhood immunizations, cancer screenings, diabetes screenings, and blood pressure checks. Many people use their Medicaid coverage specifically for preventive visits to catch health problems early before they become serious and expensive to treat.

Prescription medication coverage varies by state, but most states cover a wide range of medications through their Medicaid pharmacy programs. Some medications might require prior authorization, meaning your doctor has to get approval before the medication can be dispensed. Others might be subject to quantity limits or step therapy, where you must try a lower-cost medication first. Copayments for medications are usually low or nonexistent for people with very low incomes.

Mental health and substance use disorder services are covered by Medicaid in all states, including counseling, therapy, medication-assisted treatment, and inpatient rehabilitation. This is a significant benefit for many people, as these services can be expensive and are often not covered by other insurance. Long-term psychiatric hospitalization and outpatient mental health care are both covered services.

Dental and vision coverage varies significantly by state