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 issue brief provides an overview of Medicare, the health insurance program for people ages 65 and over and younger people with long-term disabilities. The brief review the characteristics of people on Medicare, what Medicare covers, benefit gaps and supplemental coverage, beneficiaries' out-of-pocket health care spending, program spending and financing, payment and delivery system reform, and issues for the future of Medicare.
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.
This September 2014 Visualizing Health Policy Infographic examines the role of private plans, such as HMOs and PPOs, in Medicare. These Medicare Advantage plans offer an alternative to traditional Medicare and provide all benefits covered under Medicare Parts A and B, and often Part D. The infographic includes data on Medicare Advantage penetration across the country. It shows the concentration of enrollment among a small number of firms and affiliates, and displays the extent to which Medicare pays more for Medicare Advantage enrollees than for beneficiaries in fee for service Medicare, on average, and that the payment differential is declining
This data spotlight report examines trends in the Medicare Advantage marketplace, including the choices available to Medicare beneficiaries in 2014, premium levels and other plan features. Medicare beneficiaries, on average, will have 18 private Medicare Advantage plans available to them in 2014, reflecting both new plans entering the market and old plans exiting it. If Medicare Advantage enrollees remain in their current plans, average monthly premiums will rise by almost $5 per month, or 14 percent, to $39 per month. The analysis also examines some benefits provided by Medicare Advantage plans including drug coverage and caps on out-of-pocket spending, and finds that average out-of-pocket limits across all plans will climb 11 percent to $4,797 in 2014. Additionally, this analysis examines changes in the types of plans available (HMOs, PPOs, etc.), including special needs plans in 2014.
This slideshow explains key elements of the Medicare program, which now provides health coverage to 55 million people — including 46 million people age 65 and older and another 9 million younger adults with permanent disabilities.
The House-passed legislation to repeal the Medicare Sustainable Growth Rate (SGR) includes a provision that would prohibit Medicare supplemental insurance (Medigap) policies from covering the Part B deductible for people who become eligible for Medicare beginning in 2020.
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.
On March 26, 2015, the House of Representatives passed H.R. 2, the Medicare Access and CHIP Reauthorization Act of 2015, which would replace the Sustainable Growth Rate (SGR) formula, among other changes; the bill is currently pending in the U.S. Senate. H.R. 2 includes a provision that would prohibit Medicare supplemental insurance (Medigap) policies from covering the Part B deductible for people who become eligible for Medicare on or after January 1, 2020. This data note looks at the number and share of “new” Medicare beneficiaries who would be affected by the Medigap provision in H.R. 2, if it had been implemented in 2010, using the most current data sources available, and examines trends in Medigap enrollment among new beneficiaries since 2000.
© 2025 KFF