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This brief provides an overview of the Medicare Part D prescription drug benefit, including current data on plan availability, enrollment, and spending and financing, and highlights changes made under the Inflation Reduction Act.
This Health Policy 101 chapter explores Medicaid, the primary U.S. program providing comprehensive coverage of health care and long-term services and supports to about 80 million low-income people. Originating in 1965 and expanding with the Affordable Care Act, the chapter reviews Medicaid's evolution, including 2025 changes, and its joint federal and state financing and administration. It discusses how state-level flexibility in managing Medicaid leads to variation in coverage, spending, health care delivery, and access across different states.
This Health Policy 101 chapter examines the share of the United States population who are uninsured, highlighting their demographics and the challenges they face because of the lack of coverage. Economic conditions, federal and state policy decisions, and major health crises like the COVID-19 pandemic influence the uninsured rate. While implementation of the Affordable Care Act, namely the expansion of Medicaid and availability of subsidized Marketplace coverage, led to a drop in the share of people who are uninsured, disparities in coverage persist and policy changes in the 2025 budget reconciliation bill are expected to increase the size of the population.
This brief examines key characteristics of part-time workers and their access to coverage. Part-time workers are much less likely than full time ones to be offered health benefits by their employer or to have health coverage at all.
This data note examines how the expiration of the ACA's enhanced premium tax credits could affect the out-of-pocket portion of premiums for different households.
On July 4, President Trump signed into law the budget reconciliation bill, previously known as “One Big Beautiful Bill Act.” The law includes several policy changes that could have significant implications for the health and health coverage of older Americans ages 50 and older, including those who are covered by Medicare.
This brief examines the income, assets, and home equity of Medicare beneficiaries, overall and by age, race and ethnicity, and gender. Most Medicare beneficiaries live on relatively low incomes and have modest financial resources to draw upon if they need costly care or long-term services and supports.
Between 1999 and 2023, the number of heat-related deaths in the U.S. increased by 117%. KFF analysis of data from the Centers for Disease Control and Prevention shows that American Indian or Alaska Native and Black people are at higher risk of experiencing a heat-related death compared to their White counterparts. Estimates suggest that heat events in the U.S result in approximately $1 billion in excess health care costs each year. If left unaddressed, climate change could cost the U.S. economy approximately $14.5 trillion over the next fifty years.
The Medicare Part D program provides an outpatient prescription drug benefit to more than 50 million older adults and people with long-term disabilities in Medicare who enroll in private plans, including stand-alone prescription drug plans (PDPs) to supplement traditional Medicare and Medicare Advantage prescription drug plans (MA-PDs) that include drug coverage and other Medicare-covered benefits. This brief analyzes Medicare Part D enrollment and costs in 2025 and trends over time, based on data from the Centers for Medicare & Medicaid Services (CMS).
Proposed changes in eligibility rules in both SNAP and Medicaid may jeopardize some people’s access to both adequate food and health care if various provisions of the bill take effect, in part because there is a significant overlap in eligibility requirements for Medicaid and SNAP across states. Four in 10 (40%) Medicaid enrollees receive SNAP benefits.
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