The Health and Retirement Study (HRS)-Medicare linked dataset includes HRS survey information linked to CMS claims and assessment data for the HRS study population. The HRS has been fielded since 1992 and surveys more than 30,000 people age 50 and older.

The Health and Retirement Study (HRS) is designed to:

• facilitate understanding of the relationship between medical history and financial status
• examine how use of health care may change as people age.

The longitudinal survey data is linked to CMS data to provide information on health care utilization and beneficiary assessment.

CMS is no longer distributing this file. See the NIA Data LINKAGE Program website to request this data.

The National Health and Aging Trends Study (NHATS) collects interview data on functioning in late life among the elderly population. NHATS began collecting data in 2011, with over 8,000 Medicare beneficiaries responding to the first round.

CMS is no longer distributing this file. See the NIA Data LINKAGE Program website to request this data.

The Medicare-Medicaid Linked Enrollee Analytic Data Source (MMLEADS) 2.0 suite of files combines Medicare and Medicaid enrollment and claims data into four annual beneficiary-level files. The files include beneficiaries who are Medicare-only, Medicare-Medicaid dually enrolled and Medicaid-only blind and disabled.

The Medicare-Medicaid Linked Enrollee Analytic Data Source (MMLEADS) 3.0 suite of files combines Medicare and Medicaid enrollment and claims data into two annual beneficiary-level files. The files include beneficiaries who are Medicare-only, Medicare-Medicaid dually enrolled and Medicaid-only blind and disabled.