NUCC taxonomy code

174400000X - Specialist

174400000X is the NUCC provider taxonomy code for Specialist (individual providers). 89,540 providers in our latest NPPES snapshot list it as their primary taxonomy.

89,540 providers · primary taxonomy

Code breakdown

Taxonomy code 174400000X

Display name Specialist

Grouping Other Service Providers

Classification Specialist

Section Individual

Directory Specialist provider directory

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

1744G0900X Graphics Designer (Specialist) 1744P3200X Prosthetics Case Management (Specialist) 1744R1103X Research Study Abstracter/Coder (Specialist) 1744R1102X Research Study Specialist (Specialist) 171100000X Acupuncturist 171M00000X Case Manager/Care Coordinator 174V00000X Clinical Ethicist 172V00000X Community Health Worker

Frequently asked questions

What does taxonomy code 174400000X mean?

174400000X is the NUCC Health Care Provider Taxonomy code for Specialist in the "Other Service Providers" grouping. It classifies individual providers.

Where is the taxonomy code used?

Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.

How do I find providers with taxonomy 174400000X?

Browse the Specialist directory, or use the NPI search and filter by state.

Source: CMS NPPES (public data). Snapshot 2026-07-13.