The independent source for health policy research, polling, and news.
KFF’s policy research provides facts and analysis on a wide range of policy issues and public programs.
KFF designs, conducts and analyzes original public opinion and survey research on Americans’ attitudes, knowledge, and experiences with the health care system to help amplify the public’s voice in major national debates.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the organization’s core operating programs.
State Health Facts is a KFF project that provides free, up-to-date, and easy-to-use health data for all 50 states, the District of Columbia, and the United States. It offers data on specific types of health insurance coverage, including employer-sponsored, Medicaid, Medicare, as well as people who are uninsured by demographic characteristics, including age, race/ethnicity, work status, gender, and income. There are also data on health insurance status for a state's population overall and broken down by age, gender, and income.
On June 27, 2025, the U.S. Supreme Court issued its opinion on Kennedy v. Braidwood Management, ruling that the ACA requirement that most private insurers and Medicaid expansion programs cover preventive services recommended by the United States Preventive Services Task Force (USPSTF) with no cost-sharing is constitutional.
This data note discusses changes in the number of applications for Medicaid/CHIP coverage during the coronavirus pandemic. Although enrollment in Medicaid/CHIP has increased steadily by more than 6 million individuals (9%) from February to September 2020, the total number of Medicaid/CHIP applications has decreased by more than 150,000 (-6%) in the same time period. The decline in applications might on the surface suggest that fewer people are applying for coverage even in the face of large job and income losses, but data limitations – in particular, the fact that application statistics do not distinguish between new signups and renewals – make it difficult to draw any clear conclusions.
This Health Policy 101 chapter explores the performance of the U.S. health system on a number of cost, outcomes, and quality measures by comparing it with those in similarly large and wealthy OECD nations. It highlights that despite significant spending, Americans have shorter life expectancies and encounter more barriers to health care, influenced by both the health system's structure and broader socioeconomic factors.
This analysis examines who was eligible for Medicare and/or Medicaid between 2002 and 2022 because they received disability benefits from one of the country's Social Security disability programs, Social Security Disability Insurance (SSDI) or Supplemental Security Income (SSI). Many who receive SSDI and SSI qualify for both Medicare and Medicaid, known as dual-eligible individuals.
Ten months into the unwinding of the Medicaid continuous enrollment provision, states have conducted renewals for roughly half of all enrollees in the program. This policy watch examines three key questions to monitor as unwinding continues.
Changes related to Medicaid could have major consequences for health coverage of women with low incomes as well as pregnancy, postpartum and other reproductive health care for women. Here are the top five things to know about women and Medicaid ahead of the election.
Over 25 million people were disenrolled from Medicaid and over 56 million had their coverage renewed, according to KFF’s analysis of the outcomes of the Medicaid unwinding, which nearly all states have now completed.
A quarter of people in traditional Medicare had private, supplemental health insurance in 2015—also known as Medigap—to help cover their Medicare deductibles and cost-sharing requirements, as well as protect themselves against catastrophic expenses for Medicare-covered services. This issue brief examines implications for older adults with pre-existing medical conditions who may be unable to purchase a Medigap policy or change their supplemental coverage after their initial open enrollment period.
Repeal of the Affordable Care Act could have a profound impact on women, as the law fundamentally changed women’s health coverage, benefits, and access to care.
Due to a combination of lower coverage rates, additional access barriers, and historical and ongoing discrimination, AIAN people continue to face significant disparities in health and health care.
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