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README.md

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+---
+license: other
+license_name: public-domain-with-cpt
+license_link: LICENSE
+task_categories:
+  - tabular-classification
+  - tabular-regression
+tags:
+  - medicare
+  - cms
+  - healthcare
+  - physician
+  - duckdb
+  - government-data
+  - medical-billing
+pretty_name: CMS Medicare Physician & Other Supplier Database
+size_categories:
+  - 100M<n<1B
+---
+
+# CMS Medicare Physician & Other Supplier Database
+
+A clean, queryable DuckDB database built from the [CMS Medicare Physician & Other Practitioners Public Use Files](https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners) -- provider-level Medicare Part B claims data from CY2012 through CY2023.
+
+**121,707,609 rows** across **3 tables** covering what every physician billed, what Medicare paid, and how many services and beneficiaries per NPI per HCPCS code.
+
+Built with [cms-medicare-database](https://github.com/ian-nason/cms-medicare-database).
+
+## Quick Start
+
+### DuckDB CLI
+
+```sql
+INSTALL httpfs;
+LOAD httpfs;
+ATTACH 'https://huggingface.co/datasets/Nason/cms-medicare-database/resolve/main/cms_medicare.duckdb' AS cms (READ_ONLY);
+
+-- Total Medicare spending by year
+SELECT year, ROUND(SUM(line_srvc_cnt * avg_medicare_payment_amt) / 1e9, 2) AS total_spending_billions
+FROM cms.physician_services
+GROUP BY year ORDER BY year;
+```
+
+### Python
+
+```python
+import duckdb
+con = duckdb.connect()
+con.sql("INSTALL httpfs; LOAD httpfs;")
+con.sql("""
+    ATTACH 'https://huggingface.co/datasets/Nason/cms-medicare-database/resolve/main/cms_medicare.duckdb'
+    AS cms (READ_ONLY)
+""")
+con.sql("SELECT * FROM cms.physician_services LIMIT 5").show()
+```
+
+DuckDB uses HTTP range requests, so only the pages needed for your query are downloaded.
+
+## Tables
+
+| Table | Description | Rows |
+|-------|-------------|------|
+| `physician_services` | Provider-level Medicare Part B claims: one row per NPI per HCPCS code per place  | 106,515,734 |
+| `physician_summary` | Provider-level aggregate summary: one row per NPI per year with total services,  | 12,232,194 |
+| `geography_service` | Geographic aggregate: Medicare utilization and payment by state/national level,  | 2,959,681 |
+
+## Data Source
+
+[CMS Medicare Physician & Other Practitioners PUF](https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners) -- maintained by CMS. Updated annually. Public domain U.S. government data. HCPCS descriptions include AMA CPT content used under CMS license.
+
+## License
+
+Database build code: MIT. Underlying data: public domain (U.S. government work). Note: HCPCS descriptions contain AMA CPT content included as provided by CMS in the PUF.
+
+## GitHub
+
+Full source code, build instructions, and data dictionary: [github.com/ian-nason/cms-medicare-database](https://github.com/ian-nason/cms-medicare-database)