NCHS Data Linked to CMS Medicaid Enrollment and Claims Files

NCHS has linked various surveys with Medicaid enrollment and claims records collected from the Centers for Medicare and Medicaid Services (CMS). Linkage of the NCHS survey participants with the CMS Medicaid data provides the opportunity to study changes in health status, health care utilization and expenditures in low income families with children, the elderly and disabled U.S. populations.

Medicaid enrollment and claims data are available for those NCHS respondents who agreed to provide personal identification data to NCHS and for whom NCHS was able to match with Medicaid administrative records. CMS provided NCHS with Medicaid benefit claims data for 1999 through 2009 for all successfully matched NCHS survey participants.

NCHS Surveys Linked to CMS Medicaid Data

• 1994-2005 National Health Interview Survey (NHIS)
• 1999-2004 National Health and Nutrition Examination Survey (NHANES)
• 2004 National Nursing Home Survey (NNHS)
• NHANES I Epidemiologic Follow-up Study (NHEFS)
• Third National Health and Nutrition Examination Survey (NHANES III)
• The Second Longitudinal Study of Aging (LSOA II)

Questions

The details of the linked data, linkage methods, and analysis considerations, are available from the links on the navigation menu. For additional questions, contact the Data Linkage Team:

Data Linkage Team
Office of Analysis and Epidemiology
National Center for Health Statistics
Centers for Disease Control and Prevention
3311 Toledo Road
Hyattsville, MD 20782
E-mail: datalinkage@cdc.gov