Data: Inventory

Review the Medicare and Medicaid data files available across all NIA data partner cohorts. To access details on a specific data file—including the types of variables contained within the file, click the profile link.

NOTE: An NIA data partner may not offer all of the CMS data types and years listed on this page. To determine which CMS data types and years are available for a given data partner, visit the Partners: List page, access the partner's profile, and click the CMS Summary tab.

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File Name

File Summary

Years Available

Profile Link

Part C (Medicare Advantage)

Health services information—such as diagnoses, drugs, and procedures—for study or survey participants enrolled in a Medicare Advantage (Part C) program.

2015 - 2019

Access Part C (Medicare Advantage) Profile

Part D Drug Event (PDE)

Prescription drug information for study or survey participants enrolled in Medicare's Part D program.

2006 - 2021

Access the PDE Profile

Part D Medication Therapy Management (MTM)

Medication therapy information for study or survey participants who have enrolled in the Part D Medication Therapy Management program.

2013 - 2019

Access the Part D MTM Profile

Parts A & B

Health services information—such as diagnoses, drugs, and procedures—for study or survey participants enrolled in a Medicare program.

1991 - 2021

Access the Parts A & B Profile

Transformed Medicaid Statistical Information System (T-MSIS)

Health services information—such as diagnoses, drugs, and procedures—for study or survey participants enrolled in a state Medicaid program between 2014 and 2019.

2014 - 2019

Access T-MSIS Profile

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