CMS.gov
APIFree API for CMS (Medicare) provider and health data
Overview
The CMS.gov API provides RESTful access to authoritative health data from the Centers for Medicare & Medicaid Services, including provider details (hospitals, nursing homes), Medicare coverage stats, quality ratings, and claims data. Endpoints support filtering (by location, provider type) and pagination for large datasets, with JSON responses. Use cases include building provider comparison tools, healthcare cost analytics platforms, research on Medicare utilization, and patient-facing apps to find in-network providers or check coverage eligibility.
Example Integration (JavaScript)
fetch('https://data.cms.gov/provider-data/')
.then(res => res.json())
.then(data => console.log(data))
.catch(err => console.error(err)); Key Features
- RESTful
- JSON Support
- No API Key Required
- Filtering & Pagination
- Authoritative CMS Data
Frequently Asked Questions
? Is CMS.gov API free to use?
Yes, the CMS.gov API is completely free for public access to all its health and provider datasets.
? Does it require an API Key?
No, most endpoints of the CMS.gov API do not require an API key—you can make direct RESTful requests without authentication.
? What is the response format?
The CMS.gov API primarily returns data in JSON format, which is widely compatible with web and mobile applications.
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Tool Info
Pros
- ⊕ Free access to official health datasets
- ⊕ Wide range of healthcare metrics
- ⊕ Well-documented endpoints
- ⊕ Regularly updated data
Cons
- ⊖ Potential rate limits for high-volume requests
- ⊖ Requires familiarity with healthcare terminology
- ⊖ No enterprise-level SLA
- ⊖ Large datasets need pagination handling