Medicaid

In the United States, Medicaid is a government program that provides health insurance for adults and children with limited income and resources. The program is partially funded and primarily managed by state governments, which also have wide latitude in determining eligibility and benefits, but the federal government sets baseline standards for state Medicaid programs and provides a significant portion of their funding.

Medicaid was established in 1965 and was significantly expanded by the Affordable Care Act (ACA), which was passed in 2010. In most states, any member of a household with income up to 138% of the federal poverty line qualifies for Medicaid coverage under the provisions of the ACA.^[1] A 2012 Supreme Court decision established that states may continue to use pre-ACA Medicaid eligibility standards and receive previously established levels of federal Medicaid funding; in states that make that choice, income limits may be significantly lower, and able-bodied adults may not be eligible for Medicaid at all.^[2]

Medicaid is the largest source of funding for medical and health-related services for people with low income in the United States, providing free health insurance to 85 million low-income and disabled people as of 2022;^[3] in 2019, the program paid for half of all U.S. births.^[4] As of 2017, the total annual cost of Medicaid was just over $600 billion, of which the federal government contributed $375 billion and states an additional $230 billion.^[4] States are not required to participate in the program, although all have since 1982. In general, Medicaid recipients must be U.S. citizens or qualified non-citizens, and may include low-income adults, their children, and people with certain disabilities.^[5] As of 2022^[update] 45% of those receiving Medicaid or CHIP were children.^[3]

Medicaid also covers long-term services and supports, including both nursing home care and home- and community-based services, for those with low incomes and minimal assets; the exact qualifications vary by state. Medicaid spent $215 billion on such care in 2020, over half of the total $402 billion spent on such services.^[6] Of the 7.7 million Americans who used long-term services and supports in 2020, about 5.6 million were covered by Medicaid, including 1.6 million of the 1.9 million in institutional settings.^[7]

Medicaid covers healthcare costs for people with low incomes, while Medicare is a universal program providing health coverage for the elderly. Medicaid offers elder care benefits not normally covered by Medicare, including nursing home care and personal care services. There are also dual health plans for people who have both Medicaid and Medicare.^[8] Along with Medicare, Tricare, and ChampVA, Medicaid is one of the four government-sponsored medical insurance programs in the United States. The U.S. Centers for Medicare & Medicaid Services in Baltimore, Maryland provides federal oversight.^[9]

Research shows that existence of the Medicaid program improves health outcomes, health insurance coverage, access to health care, and recipients' financial security and provides economic benefits to states and health providers.^{[10][11][12][13]}