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.
Medicare Advantage plans denied 3.4 million prior authorization requests for health care services in whole or in part in 2022, or 7.4% of the 46.2 million requests submitted on behalf of enrollees that year, according to a new KFF analysis of federal data. That was a higher share of denials than in recent years.
As the Trump administration overhauls government health agencies, partisan trust in these agencies on vaccines has shifted and few express confidence in their ability to carry out key tasks. Most adults are confident in the safety of routine vaccines, but the COVID-19 vaccines remain polarizing with many uncertain about false claims regarding mRNA technology.
About one in eight adults (12%) say they have taken one of an increasingly popular class of prescription drugs known as GLP-1s that are used for weight loss and to treat diabetes and reduce the risk of heart disease and stroke, a new KFF Health Tracking Poll finds.
On June 28, 2024, the U.S. Supreme Court overturned a longstanding legal precedent that required federal courts to defer to reasonable agency interpretation when statutes are ambiguous. The decision will shift many policy decisions from federal agencies to federal judges, with implications for health policy that will reverberate for years to come. This issue brief examines the decision and assesses what’s ahead.
In a new analysis, KFF finds that 3.6 million people with Medicare could be eligible for coverage of Wegovy (semaglutide) now that the Food and Drug Administration has approved the use of the anti-obesity drug to reduce the risk of heart attacks and stroke in certain patients.
At the start of 2025, many issues are at play that will affect Medicaid coverage, financing, and access to care. While Medicaid was not discussed much on the campaign trail, Congress may consider big changes as part of tax and spending debates and the Trump administration may make changes to Medicaid through executive actions. Amid the potential changes, this brief highlights ten key things to know about Medicaid.
This slideshow explores prescription drug spending for people who are covered by large employer health plans.
This brief highlights some of the key federal agencies and offices that play a role in making Medicare work and, to the extent possible, describes the recent staffing and organizational changes made by the Trump administration that could affect the operations of Medicare in the future.
In discussions of Medicare’s financial condition, attention frequently centers on one specific measure—the solvency of the Medicare Hospital Insurance (HI) trust fund, out of which Medicare Part A benefits are paid. Based on current projections from the Medicare Board of Trustees, the HI trust fund is projected to be depleted in 2036, 12 years from now. These FAQs answer key questions about Medicare financing and trust fund solvency.
Most voters (61%) now say that the outcome of this year’s presidential election will have a major impact on access to abortion in this country – up 10 percentage points from March, a new KFF Health Tracking Poll finds.
© 2025 KFF