SEER-Medicare Linked Data Resource

The SEER-Medicare data reflect the linkage of two large population-based sources of data that provide detailed information about Medicare beneficiaries with cancer.

SEER-Medicare Overview

Announcements

  • Applications for the 2024 SEER-Medicare linkage data now include the Cancer File to 2021 and most Medicare enrollment and claims data to 2022.
  • In response to the CMS Research Data Request & Access PolicyExternal Web Site Policy, NCI will identify an enclave environment for the SEER-CMS data resources: SEER-Medicare, SEER-MHOS, SEER-CAHPS, and SEER-Medicaid. Please monitor this section for updates.

Support

Programming Support

Researchers often have questions about the SEER-Medicare data or need help before or during an analysis. You may find the materials provided here to be helpful as you conduct your analyses.

More About Programming Support

Privacy & Confidentiality Issues

NCI, the Centers for Medicare & Medicaid Services, and the SEER staff have great appreciation for the potentially sensitive nature of data about persons with cancer and the need to respect the privacy of patients and providers included in the SEER-Medicare data.

More About Privacy

Need Help?

Have questions about this topic or need additional assistance?

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Last Updated: 31 Mar, 2025