National Provider Identifier Validation Tool
The National Provider Identifier (NPI) is a unqiue, 10-position numeric identifier, issued by the Centers for Medicare and Medicaid Services (CMS) for covered health care providers.
NPI numbers can be pre-validated using the ISO standard Luhn algorithm, which has been implemented in the tool below.
NPI Validation Tool
Need a NPI pre-check solution for your system? Learn more about the ISO standard Luhn algorithm and how to calculate the NPI Check Digit.
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