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 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 report examines the Center for Medicare and Medicaid Services (CMS) financial alignment demonstration for beneficiaries dually eligible for Medicare and Medicaid, with a focus on the extent to which participating states and health plans have prior experience with capitated managed care arrangements under Medicare or Medicaid, and specifically for this population. Under these capitated financial alignment demonstrations, health plans contract with the state and CMS (a three-way contract) to provide both Medicare and Medicaid benefits to dually eligible beneficiaries. These demonstrations aim to improve the quality of care and the coordination of benefits for people dually eligible for Medicare and Medicaid. The report finds considerable variation in the experience of states and health plans participating in these demonstrations, and discusses the potential implications for beneficiaries and plan oversight.
This report examines similarities and differences in federal consumer protection standards for Medicare Advantage (MA) plans, Qualified Health Plans (QHPs), and Medicaid Managed Care Organizations (MCOs). It focuses on rules established at the federal level, though some states have chosen to go above the federal minimums and impose additional requirements for QHPs and Medicaid MCOs.
This brief describes how the new board created under the 2010 health reform law is expected to limit the growth in Medicare spending over time.
As the number of Medicare Advantage enrollees continues to climb, there is growing interest in understanding how the care provided to Medicare beneficiaries in Medicare Advantage plans differs from the care received by beneficiaries in traditional Medicare. This literature review of more than 40 studies synthesizes the evidence to date comparing access and quality for beneficiaries in Medicare Advantage plans and traditional Medicare.
In the latest post in the Policy Insights series, Tricia Neuman draws on the experiences of Medicare beneficiaries during Medicare’s annual enrollment period to consider whether consumers with health insurance coverage through the Affordable Care Act’s new marketplaces will shop for a better deal during their open enrollment season. Previous columns in the Policy Insights series are also available on kff.org.
This Data Note examines the availability of plans nationwide and by state in 2015, and changes in plan availability since 2011. It documents the number and share of Medicare Advantage enrollees affected by plan withdrawals each year, the characteristics of plans that will be entering the market and characteristics of those exiting the market in 2015.
Medicare: The Essentials (July 2013) Download Medicare Enrollment, 1966-2013 Download Source Centers for Medicare & Medicaid Services, Medicare Enrollment: Hospital Insurance and/or Supplemental Medical Insurance Programs for Total, Fee-for-Service and Managed Care Enrollees as of July 1, 2011: Selected Calendar Years 1966-2011; 2012-2013, HHS Budget in Brief, FY2014.
This updated resource features more than 80 charts and tables with detailed information about the Medicare program and the 42 million seniors and younger people with disabilities who rely on the program for health insurance coverage. It covers a wide range of relevant data, including state-by-state information when available.
© 2025 KFF