Blog

• How to download the NPPES NPI file and build a list of medical practices

  Download the free NPPES NPI registry file, load its 9.6 million records with Python and DuckDB, and clean it into a list of U.S. medical practices.

• How to find medical practices by specialty with NPI taxonomy codes

  How taxonomy codes work in the NPPES NPI file, why matching only the primary code misses up to 48% of practices in a specialty, and a query that finds them.