Comparisons
Written to be useful when we are the wrong answer as well as when we are the right one. Where a free or authoritative alternative exists, these pages say so.
License numbers in NPPES are self-reported, and NPPES has no mechanism to check them against a state board. What an NPI lookup proves, what it does not, and how cross-referencing closes the gap.
For nurses, probably not - Nursys is primary-source-equivalent and free to institutions. Where the gap actually is, and why most teams should use both.
Live queries are the freshest answer and the most fragile one - and for many professions no lookup form exists to query. What each approach costs, and when to go to the board itself.
The download is the easy part. Authenticated portals, formats that never converge, and the silent failures nobody scopes - plus when building really is the right call.
Verifiable is an NCQA-certified CVO and credentialing platform; we are one API endpoint. Which problem each product actually solves, and when a CVO is the answer and an API is not.
See also the coverage matrix for what we actually hold, and the data methodology for where every record comes from.