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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.
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This brief examines the final CMS regulations governing prior authorization in Medicare Advantage, Marketplace, Medicaid, and other plans, how they might address some current consumer concerns, and some issues that remain.
KFF today launched a new side-by-side comparison tool of the records and policy positions of President Biden and former President Trump across a range of key health policy issues.
This brief reviews new data from the May 2025 KFF Health Tracking Poll on LGBT adult’s experiences and concerns related to health care affordability. Overall, the findings show that LGBT adults face more widespread problems and concerns with health care affordability compared to non-LGBT adults.
The future of the Affordable Care Act, an issue that was once a key health care issue for Republican voters, is now more important to Democratic voters, a new KFF Health Tracking Poll finds.
This issue briefs lays out 10 reasons why Medicare Advantage enrollment has been growing and why we can expect more growth in the years to come.
This brief provides an overview of oral contraception, discusses private insurance and Medicaid coverage, and reviews strategies to promote and expand women’s access to oral contraceptives.
While issues of health care costs and affordability may not be at the forefront of this year’s election issues, they remain a major concern among the public.
This brief analyzes federal transparency data released by the Centers for Medicare and Medicaid Services (CMS) on claims denials and appeals for non-group qualified health plans (QHPs) offered on HealthCare.gov in 2023. It finds that HealthCare.gov insurers denied nearly one out of every five claims (19%) submitted for in-network services. Information about the reasons for denials is limited, and few consumers appeal claims denials.
This chart collection explores how health spending is expected to grow in coming years, with a look at growth in prescription drug spending, out-of-pocket spending, and related trends.
This brief provides an overview of premiums and benefits in Medicare Advantage plans that are available for 2025 and key trends over time. Two-thirds of all Medicare Advantage plans with Part D prescription drug coverage (MA-PDs) (67%) will charge no premium (other than the Part B premium) in 2025, similar to 2024 (66%). Nearly all Medicare Advantage plans (97% or more) are offering vision, dental and hearing, as they have in previous years. However, the share of plans offering certain benefits has declined, such as over-the-counter benefits (85% in 2024 vs. 72% in 2025), remote access technologies (74% in 2024 vs. 53% in 2025), meal benefits (72% in 2024 vs. 65% in 2025) and transportation (36% in 2024 vs. 29% in 2025).
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