Audiologist Taxonomy Code 231H00000X
231H00000X
Level II - Classification
29,692Registered providers
64Medicare specialty
25.1NUCC version
56States & territories
Definition
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.
Code Details for 231H00000X
About Taxonomy Code 231H00000X
The taxonomy code 231H00000X identifies Audiologist within the Speech, Language And Hearing Service Providers provider grouping. It is a Level II — Classification code, which names a provider's occupation or service within the broader provider grouping.
NPI records show 29,692 registered providers whose primary or secondary taxonomy is this code. Of these, 4,826 (16%) are registered as organizations and 24,866 (84%) as individual providers. The states with the most audiologist providers are California (2,087), Texas (1,936), New York (1,927). For Medicare enrollment, it crosswalks to specialty code 64 (Audiologist).
Taxonomy codes are self-selected by the provider based on their education and training; they describe the provider's type and specialty, not the specific services rendered.
Provider Composition & Statistics
29,692Total providers
4,826Organizations 16%
24,866Individuals 84%
21,126Female
3,701Male
39Undisclosed
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-06-21T00:00:00.
View all 29,692 providersAudiologist Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
29,692
Alabama421Alaska78American Samoa1Arizona554Arkansas275California2,087Colorado944Connecticut360Delaware75District Of Columbia153Florida1,851Georgia692Guam5Hawaii113Idaho177Illinois1,134Indiana655Iowa278Kansas299Kentucky407Louisiana343Maine156Mariana Islands1Maryland765Massachusetts760Michigan949Minnesota644Mississippi219Missouri653Montana115Nebraska238Nevada200New Hampshire139New Jersey631New Mexico173New York1,927North Carolina1,015North Dakota79Ohio1,237Oklahoma314Oregon435Pennsylvania1,290Puerto Rico194Rhode Island91South Carolina396South Dakota124Tennessee709Texas1,936Utah372Vermont87Virgin Islands6Virginia686Washington785West Virginia204Wisconsin572Wyoming75
Frequently Asked Questions
231H00000X questionsNPPES lists 29,692 registered providers with this taxonomy code (Audiologist).
Both. About 16% of these providers are registered as organizations and 84% as individuals.
It crosswalks to Medicare specialty code 64 (Audiologist).
It is a Level II - Classification code in the NUCC Health Care Provider Taxonomy set.
Use the "Providers by state" directory on this page to open the list of audiologist providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 25.1. Provider counts from NPPES. See nucc.org.
