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.
Nationwide, an estimated 52 million nonelderly adults live with mental illness, and Medicaid covers nearly one in three (29%) of them, or about 15 million adults. More than 1 in 3 Medicaid enrollees has a mental illness. Mental health treatment rates for Medicaid adults are higher than or similar to those with insurance.
This brief provides five key facts on Medicaid and immigrants as context for understanding the potential impacts of policy changes under the Trump administration.
This issue brief discusses key changes to immigration policies that may take place under the second Trump administration based on his previous record and campaign statements, and their implications.
In Medicare Physician Fee Schedule Final Rules from recent years, the administration made changes to Medicare payment policies for certain dental services, in addition to other payment and policy changes. The 2023 rule clarified CMS’s interpretation of when medically necessary dental services can be covered and codified certain payment policies, and the 2023, 2024, and 2025 rules define new clinical scenarios for which Medicare payment can be made for dental services. This brief describes current law related to coverage and payment for dental services under Medicare and the rationale for changes to current policy, explains changes to dental payment and coverage included in these rules, and discusses the impact on Medicare and beneficiaries. While these changes are projected to benefit a small number of Medicare beneficiaries, they do not represent a broad expansion of Medicare coverage of dental services.
This page displays an interactive map of the current status of state decisions on the Affordable Care Act's Medicaid expansion. Additional Medicaid expansion resources are listed (with links) below the map.
A summary of 10 of the major health coverage and financing provisions of the current Build Back Better Act, with discussion of the potential implications for people and the federal budget.
These resources are for anyone shopping (or helping someone shop) for health coverage within the health insurance marketplaces created through the Affordable Care Act (also known as the ACA or Obamacare.)
This data note describes trends in health coverage prior to and during the pandemic and examines the characteristics of the uninsured population in 2020.
This Health Policy 101 chapter explores Medicare, a federal health insurance program covering more than 68 million people, established in 1965 for people age 65 or older and later expanded to cover people under age 65 with long-term disabilities. In addition to detailing Medicare eligibility, coverage, and spending, the chapter examines the increased role of private plans in providing benefits and the financing challenges posed by increasing health care costs and an aging population.
Noncitizen immigrants, particularly those who are undocumented, face significant barriers to accessing health coverage and care and are significantly more likely than citizens to be uninsured. Some states have taken up options in Medicaid and the Children’s Health Insurance Program (CHIP) to expand coverage for lawfully present immigrants and/or established fully state-funded programs to fill gaps in coverage for immigrants. This brief provides an overview of state health coverage programs for immigrants regardless of status and examines how health coverage for immigrants vary by state coverage policies using data from the 2023 KFF/LA Times Survey of Immigrants.
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