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 highlights estimates from the Urban Institute’s ACS-HIPSM on the magnitude and composition of Medicaid enrollees and the uninsured after full implementation of the Affordable Care Act (ACA), including the Medicaid expansion. Both state and local level estimates highlight the geographic variation.
This Policy Insight explores possible explanations for the continued rise in Medicare Advantage enrollment between 2010 and 2013 in spite of a projected decrease following payment changes in the Affordable Care Act (ACA).
This brief provides an on-the-ground view of ACA implementation after completion of the second open enrollment period. It is based on 40 in-person interviews conducted in five states that have made different implementation choices, including three states (Colorado, Kentucky, and Washington) that have developed a State-based Marketplace and adopted the Medicaid expansion and two states (Utah and Virginia) that rely on the Federally-facilitated Marketplace (FFM) for enrollment of individuals into qualified health plans (QHPs) and…
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 brief reviews the new renewal requirements for Medicaid and CHIP that are designed to maintain continuity of coverage for eligible individuals. It provides an overview of state implementation of the new renewal policies and considers the potential role managed care plans can play in supporting renewals. Key findings include: some aspects of the simplified renewal policies have not yet been fully implemented due to a range of challenges; some states, including Washington and Rhode…
Three key private health insurance markets -- Medicare Advantage, the individual market and the fully-insured group market -- appear to be financially healthy and attractive to insurers. The private Medicare Advantage market generates significantly larger gross margins per person than the individual market or fully-insured market. The future of these markets has become a focus for policymakers amid the debate over Medicare for All.
In November 2018, CMS released new state data on MAGI Medicaid and CHIP application processing time. These data reflect continued progress in reporting of performance indicators that CMS established in 2013 to facilitate data-driven program management and improvement.
This fact sheet provides analysis of this recent enrollment decrease and discusses potential implications for coverage rates. It is based on Kaiser Family Foundation analysis of the Centers for Medicare and Medicaid Services (CMS) Performance Indicator Project Data.
Twenty-nine percent of new beneficiaries chose to enroll in Medicare Advantage during their first year in Medicare in 2016, finds a new KFF analysis. That level generally matches the overall share of beneficiaries who opted for Medicare Advantage that year, but does not support the view that the aging Baby Boom generation, having had more experience with HMOs and PPOs during their working years, would select the private plans over traditional Medicare at relatively high…
The analysis finds that people who switched from traditional Medicare to Medicare Advantage in 2016 had health spending in 2015 that was $1,253 less, on average, than the average spending for beneficiaries who remained in traditional Medicare (after adjusting for health risk). The findings suggest that the current payment method may systematically overestimate expected costs of Medicare Advantage enrollees. Adjusting payments to reflect Medicare Advantage enrollees’ prior use of health services could potentially lower total…
© 2026 KFF