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SEER-Medicaid Linked Data Resource
The SEER-Medicaid data reflect the linkage of two large population-based sources of data that provide information about Medicaid beneficiaries with cancer.
SEER-Medicaid Overview
Announcements
- NCI has linked in new area-level measures, see Geographic Area Data for more information.
- Per a new NCI-CMS agreement, by March 1, 2027, access to SEER-CMS data will shift from physical files to a federally managed secure enclave. The final cost structure is under review, but users will pay a periodic, person-specific "seat" fee for enclave access to offset IT and software costs. No new cloud storage will be approved during this transition, except for existing NCI/CMS-approved Data Management Plans (DMP) SAQ. Stay tuned for further updates.
- The application process for SEER-Medicaid data is now open.
Data
The SEER-Medicaid Data File
Obtaining SEER-Medicaid Data
Support
Programming Support
Researchers often have questions about the SEER-Medicaid 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 SupportPrivacy & Confidentiality Issues
NCI, the Centers for Medicare and 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-Medicaid data.
More About Privacy