How do I lookup a National Provider ID (NPI)? February 25, 2020 15:50 Updated You can lookup a National Provider ID (NPI) on the National Plan & Provider Enumeration (NPPES) website by clicking Search NPI Registry. Related articles What is the Accreditation Data System (ADS)? What information is required to add a Faculty member? How do I change or replace the Program Director? Supported Browsers What are the annual reporting timeframes?