NUCC taxonomy code
237700000X - Hearing Instrument Specialist
237700000X is the NUCC provider taxonomy code for Hearing Instrument Specialist (individual providers). 12,699 providers in our latest NPPES snapshot list it as their primary taxonomy.
12,699
providers · primary taxonomy
Code breakdown
Taxonomy code 237700000X
Display name Hearing Instrument Specialist
Grouping Speech, Language and Hearing Service Providers
Classification Hearing Instrument Specialist
Section Individual
Definition
Individuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society
Definition from the NUCC Health Care Provider Taxonomy code set.
Advertisement
Related taxonomy codes
231H00000X Audiologist 231HA2400X Assistive Technology Practitioner Audiologist (Audiologist) 231HA2500X Assistive Technology Supplier Audiologist (Audiologist) 237600000X Audiologist-Hearing Aid Fitter 235500000X Speech/Language/Hearing Specialist/Technologist 2355A2700X Audiology Assistant (Specialist/Technologist) 2355S0801X Speech-Language Assistant (Specialist/Technologist) 235Z00000X Speech-Language Pathologist
Frequently asked questions
What does taxonomy code 237700000X mean?
237700000X is the NUCC Health Care Provider Taxonomy code for Hearing Instrument Specialist in the "Speech, Language and Hearing 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 237700000X?
Browse the Hearing Instrument Specialist directory, or use the NPI search and filter by state.
Source: CMS NPPES (public data). Snapshot 2026-07-13.