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.
Share of Medicare Beneficiaries Enrolled in Medicare Advantage Plans, by State, 2013 Download Source MPR/Kaiser Family Foundation analysis of CMS State/County Market Penetration Files, 2013.
Dually eligible beneficiaries comprise 20% of the Medicare population and 15% of the Medicaid population, 2008 Download Source Kaiser Family Foundation analysis of the Medicare Current Beneficiary Survey 2008, and Kaiser Commission on Medicaid and the Uninsured and Urban Institute estimates based on data from FY2008 MSIS and CMS Form-64.
Dual eligible beneficiaries as a share of Medicare and Medicaid population and spending, 2008 Download Source Kaiser Family Foundation analysis of the CMS Medicare Current Beneficiary Survey Cost and Use File, 2008, and Kaiser Commission on Medicaid and the Uninsured and Urban Institute estimates based on data from FY2008 MSIS and CMS Form-64.
Sources of Supplemental Coverage Among Medicare Beneficiaries, 2009 Download Source Kaiser Family Foundation analysis of the Centers for Medicare & Medicaid Services Medicare Current Beneficiary Survey, 2009 Cost and Use file.
Median Out-of-Pocket Health Care Spending As a Percent of Income Among Medicare Beneficiaries, 1997-2006 Download Source Kaiser Family Foundation analysis of CMS Medicare Current Beneficiary Survey Cost and Use files, 1997-2006.
Out-of-Pocket Health Care Spending As a Percent of Income Among Medicare Beneficiaries, By Spending Percentile, 1997-2006 Download Source Kaiser Family Foundation analysis of CMS Medicare Current Beneficiary Survey Cost and Use files, 1997-2006.
Part B and Part D Out-of-Pocket Spending as a Share of Average Social Security Benefit, 1970-2010 Download Source Kaiser Family Foundation analysis based on data from 2012 Annual Report of the Boards of Trustees of the Federal Hospital Insurance and Federal Supplementary Medical Insurance Trust Funds.
Distribution of Average Household Spending by Medicare and Non-Medicare Households, 2010 Download Source Kaiser Family Foundation analysis of the Bureau of Labor Statistics Consumer Expenditure Survey Interview and Expense Files, 2010.
Medicare as a Share of the Federal Budget, 2012 Download Source Congressional Budget Office (CBO) Medicare Baseline, May 2013.
Projected Medicare Spending, 2013-2023 Download Source Congressional Budget Office (CBO) Medicare Baseline, May 2013.
© 2025 KFF