How NPPES updates work
NPPES is a self-reported registry. A provider or organization creates a record and updates it through CMS when their details change. CMS publishes the data, and we refresh from that public file periodically — each record shows the last refresh date. Nothing updates a record automatically; a change only appears after the provider reports it and CMS republishes.
Fields most likely to be out of date
- Practice address. Providers move; old practice locations can linger.
- Name. Legal name changes may not be reflected immediately.
- Taxonomy (specialty). A provider may practice differently than their recorded taxonomy suggests.
- Organization affiliation. Group and employer relationships change over time.
- Status. A record may be active in NPPES even after circumstances change.
What stays stable
The 10-digit NPI itself is permanent and does not change. The entity type (individual vs. organization) is fixed when the NPI is assigned. So the identifier is reliable even when the descriptive fields around it are not current.
How to confirm current details
- Check the "last updated from CMS" date on the record.
- For address or contact details, confirm directly with the provider's office.
- For licensure and standing, use the state licensing board — see NPI vs. medical license.
- If you spot an error in our display of the public data, see our contact page; to fix the official record, see how to update an NPPES record.