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 Can I export data? Where can I find the ACGME glossary of terms? Where can I find the Verification of GME Training Form (VGMET)? How do I update a Resident/Fellows email address? Where can I find the Residency Program Directors' Guide to the Common Program Requirements?