National totals
| Active NPI records | 5,764 |
| Registered sole proprietors | 624 (10.8%) |
| NUCC taxonomy code | 237600000X |
| Grouping | Speech, Language and Hearing Service Providers |
What this specialty covers
An audiologist/hearing aid fitter is the professional who specializes in evaluating and treating people with hearing loss, conducts a wide variety of tests to determine the exact nature of an individual's hearing problem, presents a variety of treatment options to patients, dispenses and fits hearing aids, administers tests of balance to evaluate dizziness and provides hearing rehabilitation training. This classification should be used where individuals are licensed as "audiologist-hearing aid fitters" as opposed to states that license individuals as "audiologists".
Reading the sole-proprietor share
Among this specialty's records, the 10.8% sole-proprietor share means 624 active records have that NPPES flag. Because the field is self-reported, it is an imperfect proxy for private practice and does not by itself establish ownership, employment arrangement, or independence from an organization.
By state
| State | Active NPIs | Sole proprietors | Share |
|---|---|---|---|
| California | 706 | 90 | 12.7% |
| Texas | 608 | 66 | 10.9% |
| New York | 355 | 49 | 13.8% |
| Florida | 291 | 31 | 10.7% |
| Pennsylvania | 214 | 39 | 18.2% |
| Michigan | 201 | 22 | 10.9% |
| Ohio | 182 | 29 | 15.9% |
| Washington | 182 | <11 | not reported |
| Arizona | 178 | 20 | 11.2% |
| Illinois | 173 | 20 | 11.6% |
| New Jersey | 165 | 17 | 10.3% |
| Minnesota | 160 | <11 | not reported |
| North Carolina | 149 | 16 | 10.7% |
| Louisiana | 146 | 22 | 15.1% |
| Colorado | 135 | <11 | not reported |
| Virginia | 128 | <11 | not reported |
| Maryland | 124 | <11 | not reported |
| Tennessee | 114 | 13 | 11.4% |
| Oregon | 110 | <11 | not reported |
| Alabama | 102 | <11 | not reported |
| Iowa | 97 | 11 | 11.3% |
| Indiana | 94 | 12 | 12.8% |
| Georgia | 90 | 11 | 12.2% |
| Missouri | 80 | <11 | not reported |
| Utah | 76 | <11 | not reported |
| New Mexico | 72 | <11 | not reported |
| Wisconsin | 65 | <11 | not reported |
| Connecticut | 63 | 12 | 19.0% |
| Massachusetts | 62 | 11 | 17.7% |
| Kansas | 57 | <11 | not reported |
| Montana | 50 | <11 | not reported |
| Nevada | 48 | <11 | not reported |
| West Virginia | 44 | <11 | not reported |
| Nebraska | 42 | <11 | not reported |
| Idaho | 42 | <11 | not reported |
| South Carolina | 39 | <11 | not reported |
| Oklahoma | 37 | <11 | not reported |
| Kentucky | 35 | <11 | not reported |
| Arkansas | 32 | <11 | not reported |
| Maine | 27 | <11 | not reported |
| South Dakota | 25 | <11 | not reported |
| Delaware | 21 | <11 | not reported |
| Mississippi | 20 | <11 | not reported |
| New Hampshire | 19 | <11 | not reported |
| District of Columbia | 16 | <11 | not reported |
| Wyoming | 15 | <11 | not reported |
| Vermont | 15 | <11 | not reported |
| Rhode Island | 15 | <11 | not reported |
| Hawaii | 11 | <11 | not reported |
| North Dakota | 11 | <11 | not reported |
New NPI registrations by year
| Year first enumerated | NPIs |
|---|---|
| 2016 | 147 |
| 2017 | 185 |
| 2018 | 206 |
| 2019 | 164 |
| 2020 | 137 |
| 2021 | 254 |
| 2022 | 138 |
| 2023 | 155 |
| 2024 | 137 |
| 2025 | 117 |
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
- The sole-proprietor field is self-reported by the provider in NPPES and is an imperfect proxy for private practice.
- A sole-proprietor count shown as <11 is suppressed: the true value is below 11, which could include zero.
- These figures count active NPI records with this as the primary taxonomy, not necessarily distinct clinicians or every professional providing these services.
- First-enumeration year indicates when an NPI was issued, not when a provider began practicing in this specialty.
- Providers are counted once, by their primary taxonomy code only.
Common questions
How many audiologist-hearing aid fitters are there in the US?
There are 5,764 active NPI records with Audiologist-Hearing Aid Fitter as the primary taxonomy.
How many audiologist-hearing aid fitters are in private practice?
NPPES flags 624 records, or 10.8%, as sole proprietors. This is a self-reported classification and should be treated as an imperfect proxy for private practice.
Which states have the most audiologist-hearing aid fitters?
The largest state counts are California with 706, Texas with 608, New York with 355, Florida with 291, and Pennsylvania with 214.
How many audiologist-hearing aid fitter NPIs were recently enumerated?
Among the most recent full years available, 155 NPIs were first enumerated in 2023, 137 in 2024, and 117 in 2025.
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