CMS.gov
Access to the data from the CMS - medicare.gov
- Authentication
- API Key
- HTTPS
- Yes
- CORS
- Unknown
- Category
- Health
- Documentation / URL
- https://data.cms.gov/provider-data/
Overview
CMS.gov provides Medicare/Medicaid data — key-based (per the listing).
⚠️ Status (verified 2026-08): a guessed path returned HTTP 404 with a structured error pointing to
data.cms.gov/data.json— the API is alive; use dataset IDs from the catalog.
What it provides
curl "https://data.cms.gov/data-api/v1/dataset/{dataset_id}"Notes
- Medicare/Medicaid datasets (structured 404 with catalog link, verified).
- Find dataset IDs in data.cms.gov/data.json.
FAQ
Is CMS.gov free? Yes — free government health data.
Why 404? Our 2026-08 guess path was wrong (verified) — check data.cms.gov/data.json.
What data is available? Medicare/Medicaid datasets.
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