What is the definition of a Taxonomy code?
The health care provider Taxonomy code is a unique, 10-character, alphanumeric code that allows a provider to identify a specialty category. Providers applying to NPPES for an NPI are required to submit their Taxonomy codes. Providers may have one or more Taxonomy codes associated to them. If a provider is required to report a Taxonomy code when using the Web-based NPI reporting crosswalk tool, only one Taxonomy can be chosen regardless of how many taxonomies were reported to NPPES. Arkansas Medicaid will use a Taxonomy code only to match an NPI to a legacy Arkansas Medicaid provider ID during EDI processing. No payment processing will be completed using the taxonomy code.