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 primer providers an overview of certain delivery system reform models that are being examined in traditional Medicare, and explains model goals, financial incentives, potential beneficiary implications, and results so far with respect to Medicare spending and care quality. The primer discusses accountable care organizations, medical homes and bundled payments.
A new brief on the Peterson-Kaiser Health System Tracker finds that the quality of the U.S. health system is improving in many areas, but comparable countries continue to outperform the United States on key measures.
The quality of the U.S. health system is improving in many areas, but comparable countries continue to outperform the United States on key measures. In this brief on the Peterson-Kaiser Health System Tracker, analysts from the Kaiser Family Foundation compile an overall picture of health care quality in the United States, using the best available data from numerous sources on health outcomes, quality of care, and access to services.
This infographic takes a look at primary care practioners' (PCPs') perspectives on recent changes to the health care delivery system.
Primary Care Practitioners’ Perspectives on Delivery System Changes Download View JAMA infographic…
Health of the Healthcare System is a diagnostic look at the state of our healthcare system. How does the U.S. healthcare system compare to health systems of other high-income countries, and how has it fared over time? Kaiser Health News and former-NPR reporter, Julie Rovner, takes us through a check-up of our system by assessing four key areas: how healthy we are, the quality of care we receive, how much it costs, and how accessible it is.
Enrollment in Medicare Advantage continues to climb steadily as spending reductions enacted in the Affordable Care Act reduce historical overpayments to the private plans, according to a new analysis by the Kaiser Family Foundation. But limits on out-of-pocket spending for Medicare-covered services are rising, providing less protection for enrollees with relatively high health care expenses.
This Data Spotlight reviews national and state-level enrollment trends as of March 2015 and examines variation in enrollment by plan type and firm. It analyzes the most recent data on premiums, out-of-pocket limits, Part D cost-sharing for drugs, and plans’ quality ratings for Medicare Advantage enrollees.
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.
In 2021, 81 percent of all Medicare Advantage enrollees are in plans that receive a bonus payment from Medicare based on star quality ratings (or because they are new), substantially higher than the share in 2015 (55 percent). Annual bonus payments from the federal government to Medicare Advantage insurers have increased correspondingly, quadrupling from $3 billion in 2015 to $11.6 billion in 2021.
© 2026 KFF