Audiologist providers in the U.S.
21,672 NPPES records list audiologist as their primary taxonomy, about 6.4 per 100,000 residents; District of Columbia and Colorado have the most per resident. 4 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 231H00000X means
231H00000X is the National Uniform Claim Committee code for Audiologist, in the grouping Speech, Language and Hearing Service Providers. 21,672 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
(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.
Source: NUCC Health Care Provider Taxonomy code set, definition as NUCC publishes it (nucc.org); counts from CMS NPPES.
Most per resident: the 8 highest
Source: CMS NPPES, primary taxonomy 231H00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
New York has the most, 270
Source: CMS NPPES, primary taxonomy 231H00000X by practice city, file of Aug 9, 2026.
All 51 by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 320 | 6.3 |
| Alaska | 61 | 8.3 |
| Arizona | 431 | 5.8 |
| Arkansas | 207 | 6.7 |
| California | 1,561 | 4.0 |
| Colorado | 646 | 11.0 |
| Connecticut | 275 | 7.6 |
| Delaware | 57 | 5.5 |
| District of Columbia | 117 | 17.2 |
| Florida | 1,404 | 6.2 |
| Georgia | 516 | 4.7 |
| Hawaii | 81 | 5.6 |
| Idaho | 124 | 6.3 |
| Illinois | 868 | 6.9 |
| Indiana | 476 | 6.9 |
| Iowa | 192 | 6.0 |
| Kansas | 222 | 7.5 |
| Kentucky | 256 | 5.7 |
| Louisiana | 250 | 5.5 |
| Maine | 106 | 7.6 |
| Maryland | 519 | 8.4 |
| Massachusetts | 624 | 8.9 |
| Michigan | 695 | 6.9 |
| Minnesota | 502 | 8.7 |
| Mississippi | 159 | 5.4 |
| Missouri | 484 | 7.8 |
| State | Records | Per 100,000 |
|---|---|---|
| Montana | 80 | 7.1 |
| Nebraska | 175 | 8.8 |
| Nevada | 129 | 4.0 |
| New Hampshire | 88 | 6.3 |
| New Jersey | 443 | 4.8 |
| New Mexico | 121 | 5.7 |
| New York | 1,516 | 7.7 |
| North Carolina | 807 | 7.4 |
| North Dakota | 65 | 8.3 |
| Ohio | 967 | 8.2 |
| Oklahoma | 248 | 6.1 |
| Oregon | 319 | 7.5 |
| Pennsylvania | 919 | 7.1 |
| Rhode Island | 70 | 6.4 |
| South Carolina | 265 | 4.9 |
| South Dakota | 85 | 9.2 |
| Tennessee | 558 | 7.8 |
| Texas | 1,477 | 4.8 |
| Utah | 278 | 8.1 |
| Vermont | 58 | 9.0 |
| Virginia | 512 | 5.9 |
| Washington | 584 | 7.5 |
| West Virginia | 136 | 7.7 |
| Wisconsin | 442 | 7.5 |
| Wyoming | 40 | 6.8 |
In federal data
- NUCC code231H00000X
- Size rank58th of 688 specialties by records (0.3% of all)
- Part D prescribers4 (under 0.1% of records)
- Part D claims1,387 a year per prescriber, on average (50th of 496)
- Industry payments3 physicians paid $133 in 2024, $44 each on average
- Concentration10 states hold half of all records
Source: CMS NPPES; Medicare Part D Prescriber PUF; CMS Open Payments 2024. Presence in these files is not a quality judgment.
A sample of audiologist records
- Renee Downs, M.C.D., CCC-AAnchorage, AK1649275363
- Angeli Mohanani-Posey, AUDAnchorage, AK1053782375
- Diana Clayburgh, AU.D.Anchorage, AK1568993186
- Tiffany McDonald, AU.D.Anchorage, AK1023504826
- Wilmarie Rosado Cortes, AU.D.Anchorage, AK1437829173
- Shannon Hunt, AUD, CCC-AJoint Base Elmendorf Richardson, AK1154311967
- Rosemarie Rotunno, AU.D.Elmendorf Afb, AK1417917444
- Natasha Trozzolo, AU.D.Elmendorf Afb, AK1174907042
- Gabrielle Padgett, AUDJber, AK1194343905
- Mindy Galyon, M.A.Anchorage, AK1215974050
- Michelle Fornelli, AU.D.Anchorage, AK1043255573
- Beverly LemasterAnchorage, AK1902826597
- Cari Sherris, MED, CCC-A/SLPAnchorage, AK1841210911
- Charlene Matesich, MS CCCA REEGEPNCSTAnchorage, AK1740378959
- Jamie Burford, AU.D.Anchorage, AK1093880841
- Thomas McCartyAnchorage, AK1386705929
Registry order, not a ranking. Search by name to find one provider.
Common questions
Where does the large Audiologist headcount concentrate?
21,672 Audiologist NPIs span 56 states; California alone holds 1,561. Top metros include New York, NY; Houston, TX; Boston, MA; Chicago, IL. Nationally this is 58th of 688 NUCC codes.
How large is Audiologist's Open Payments footprint?
CMS Open Payments 2024 lists 3 Audiologist physicians totaling $133 (5 payments; average $44, 453rd of 470). Presence in Open Payments is not a quality judgment.
How heavy is Audiologist Part D prescribing at scale?
Among Audiologist NPIs, 4 appear in the Medicare Part D Prescriber PUF (average 1,387 claims and $18K drug cost per prescriber; 50th of 496 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy (nucc.org); Medicare Part D Prescriber PUF; CMS Open Payments 2024. Counts are self-designated primary taxonomy, not board certification.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.