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.
This brief provides an overview of the Medicare Advantage plans that are available for 2026 and key trends over time. In 2026, the average Medicare beneficiary has a choice of 32 Medicare Advantage prescription drug (MA-PD) plans, two fewer than the 34 in 2025. Virtually all Medicare Advantage plans for 2026 provide multiple extra benefits like vision, hearing, and dental benefits, similar to last year.
This chart collection compare health outcomes, quality of care, and access to services between the U.S. and peer countries. While inconsistent and imperfect metrics make it difficult to firmly assess system-wide health quality in the U.S., a review of the available data prior to the onset of the COVID-19 pandemic suggests that in most of these measures, the U.S. has lagged behind comparably large and wealthy countries.
Higher market concentration in Medicare Advantage insurance markets may lower the incentive for insurers to compete for potential enrollees by making plans more appealing through more comprehensive benefits or lower costs.
Chronic, non-communicable diseases are the leading cause of death worldwide and make up 8 of the 10 top causes of death in the U.S. Across several chronic diseases, the U.S. has a higher burden of illness than peer nations.
This analysis details how ACA marketplace premiums changed by county from 2023 to 2024, after taking into account expanded subsidies available under the Inflation Reduction Act.
About 5 million uninsured people across the country could get coverage through an Affordable Care Act Marketplace health plan with virtually no monthly premium if they enroll soon, a new KFF analysis finds. In most states, open enrollment runs through January 15, with tax credits available to help eligible low- and middle-income people afford coverage.
This post estimates that about 5 million uninsured people across the country could get coverage through an Affordable Care Act (ACA) Marketplace health plan with virtually no monthly premium if they enroll during the 2023 open enrollment period, which runs through Jan. 15 in most states.
This analysis is an update to a previous analysis conducted in September 2021. Using county-level data, we analyzed trends in COVID-19 vaccination rates in counties that voted for President Trump in the 2020 election compared to counties that voted for President Biden. We find higher vaccination rates for counties that voted for Biden. However, rates among those fully vaccinated that have received a booster are similar between the two groups.
Premiums for the Affordable Care Act Marketplace benchmark silver plan are decreasing 3.1 percent on average across the country – the fourth year in a row that benchmark premiums have fallen – though the changes vary by county, a new KFF county-by-county analysis finds.
This post examines a growing COVID-19 vaccine gap in Red and Blue America, with the share of the population that have been fully vaccinated in counties that voted for President Biden in 2020 increasing more rapidly than the share in counties that voted for President Trump.
© 2025 KFF