Effective 03/03/2026 NPPES will no longer support Version 1 of the Monthly and Weekly Downloadable File. Version 2 includes all updated field lengths with extended character limits for First Name and Legal Business Name fields. We strongly recommend using Version (V.2) moving forward as this will have the most correct provider data available due to the expanded record lengths.
- Other Name Reference File - this file contains additional Other Names associated with Type 2 NPIs.
- Practice Location Reference File - this file contains all the non-primary Practice Locations associated with Type 1 and Type 2 NPIs.
- Endpoint Reference File - this file contains all Endpoints associated with Type 1 and Type 2 NPIs.
Each zipped NPPES Downloadable file will include the following 3 reference files:
Detailed information about the NPI files is included in the Data Dissemination File - Readme file.
If you have any questions, contact CMS at customerserviceNPIenumerator@cms.hhs.gov.
Please Note: Issuance of an NPI does not ensure or validate that the Health Care Provider is Licensed or Credentialed. For more information, please refer to NPI: What You Need to Know.
Monthly NPPES Downloadable File Version 2 (V.2)
Monthly NPI Deactivation File Version 2 (V.2)
Weekly Incremental NPI Files Version 2 (V.2)
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