HHS Data Inventory

The HHS Data Inventory (metadata catalog) is a comprehensive view of public and non-public data assets managed and maintained across the Department. The HHS Data Inventory is accessible on HealthData.gov in multiple formats, including human-readable Excel files, machine-readable JSON, and via open APIs for seamless integration and automated data retrieval. HHS recognizes that version 1.0 published in July 2025 is only a start, which will improve with each future iteration and your feedback. HHS has opted not to have perfect be the enemy of good, so the HHS Data Inventory will have imperfections. When more people access and use the data, we have more collective ability to identify gaps, errors, or other problems with this HHS metadata. Your feedback and suggestions will help HealthData.gov to expeditiously improve metadata quality and underlying data that matters most to you, and HHS commits to continuous improvements to information quality. Please send your suggestions on how to improve the HHS Data Inventory to cdo@hhs.gov.

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