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.
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.
Calculation based on Kaiser Family Foundation analysis of the CMS State/County Market Penetration file, March 2012; and 2011 population estimates from the United States Census Bureau.
Urban Institute and Kaiser Family Foundation analysis, 2012; Kaiser Family Foundation analysis of the Centers for Medicare & Medicaid Services Medicare Current Beneficiary 2009 Cost and Use file.