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Audiologist: how many are there, and how many are in private practice?

An audiologist is a specialist who evaluates and manages disorders involving hearing, balance, and related communication functions, and provides audiological rehabilitation across the lifespan. This page reports the 23,661 active US NPI records with Audiologist as the primary NUCC taxonomy, along with state distribution, recent enumeration patterns, and the share flagged as sole proprietors in NPPES.

National totals

Active NPI records23,661
Registered sole proprietors3,410 (14.4%)
NUCC taxonomy code231H00000X
GroupingSpeech, Language and Hearing Service Providers

What this specialty covers

(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.

Reading the sole-proprietor share

For this specialty, 3,410 records, or 14.4%, are flagged as sole proprietors. This self-reported NPPES field can help describe how providers are registered, but it is an imperfect proxy for private practice because it does not by itself show ownership, employment setting, independence, or whether an audiologist works in a group, hospital, school, or other organization.

By state

StateActive NPIsSole proprietorsShare
California1,70634420.2%
New York1,64934621.0%
Florida1,55522814.7%
Texas1,53522514.7%
Pennsylvania1,05915514.6%
Ohio1,05814613.8%
Illinois95914615.2%
North Carolina8158810.8%
Michigan8079812.1%
Colorado76812916.8%
Massachusetts6588112.3%
Maryland6447010.9%
Washington6016310.5%
Georgia5727613.3%
Tennessee5676611.6%
Virginia536489.0%
Indiana5267915.0%
Minnesota522499.4%
Missouri521499.4%
Wisconsin481316.4%
New Jersey4708317.7%
Arizona4605612.2%
Oregon3484813.8%
Alabama3345115.3%
South Carolina3113812.2%
Utah3104313.9%
Kentucky2864014.0%
Connecticut2753813.8%
Oklahoma2743713.5%
Louisiana2595420.8%
Arkansas2393213.4%
Kansas232219.1%
Iowa1922312.0%
Nebraska183147.7%
Mississippi1772011.3%
West Virginia1632716.6%
Nevada1521811.8%
New Mexico1412719.1%
Idaho135139.6%
Maine1231310.6%
District of Columbia1182319.5%
New Hampshire99<11not reported
South Dakota95<11not reported
Hawaii861820.9%
Rhode Island83<11not reported
Vermont68<11not reported
Alaska66<11not reported
North Dakota65<11not reported
Montana641828.1%
Delaware61<11not reported
Wyoming53<11not reported

New NPI registrations by year

Year first enumeratedNPIs
2016748
2017789
2018804
2019807
2020739
2021818
2022832
2023786
2024763
2025875

Counts reflect the year each NPI was first issued, among records still active today. The final year is partial: this data covers through 2026-01-11.

Data notes

Source: CMS National Plan and Provider Enumeration System (NPPES) Data Dissemination file, FOIA-disclosable public data under CMS-6060-N. Aggregated by Hero EMR on 2026-08-03; deactivated NPIs excluded; specialty assigned from the primary taxonomy code (NUCC 25.1). Counts below 11 are suppressed. Individual providers are never published. All provider data pages.

Common questions

How many audiologists are there in the US?

There are 23,661 active NPI records nationally with Audiologist as the primary taxonomy. This is a count of NPI records, not necessarily a count of unique people or all practicing audiologists.

How many audiologists are in private practice?

A total of 3,410 records, or 14.4%, are flagged as sole proprietors in NPPES. This self-reported field is an imperfect proxy for private practice.

Which states have the most audiologists?

The largest state counts are California with 1,706, New York with 1,649, Florida with 1,555, Texas with 1,535, and Pennsylvania with 1,059.

How many new audiologist NPIs were enumerated recently?

NPIs first enumerated in the most recent full years available were 786 in 2023, 763 in 2024, and 875 in 2025. These are NPI enumeration counts, not necessarily new entrants to the profession.

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