Assistive Technology Supplier Audiologist providers in the U.S.
62 NPPES records list assistive technology supplier audiologist as their primary taxonomy; Vermont and Alabama have the most per resident. A registry record is not proof of an active practice.
What taxonomy code 231HA2500X means
231HA2500X is the National Uniform Claim Committee code for Audiologist, Assistive Technology Supplier, in the grouping Speech, Language and Hearing Service Providers. 62 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
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 231HA2500X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Madison has the most, 3
Source: CMS NPPES, primary taxonomy 231HA2500X by practice city, file of Aug 9, 2026.
All 24 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 3 | 0.1 |
| Arizona | 2 | 0.0 |
| California | 7 | 0.0 |
| Florida | 5 | 0.0 |
| Idaho | 1 | 0.1 |
| Illinois | 3 | 0.0 |
| Kansas | 1 | 0.0 |
| Kentucky | 2 | 0.0 |
| Maine | 1 | 0.1 |
| Maryland | 1 | 0.0 |
| Massachusetts | 3 | 0.0 |
| Michigan | 1 | 0.0 |
| State | Records | Per 100,000 |
|---|---|---|
| Missouri | 2 | 0.0 |
| Montana | 1 | 0.1 |
| Nebraska | 1 | 0.1 |
| New Jersey | 1 | 0.0 |
| New Mexico | 1 | 0.0 |
| New York | 8 | 0.0 |
| Oklahoma | 1 | 0.0 |
| Pennsylvania | 6 | 0.0 |
| Tennessee | 2 | 0.0 |
| Texas | 6 | 0.0 |
| Vermont | 1 | 0.2 |
| Wisconsin | 1 | 0.0 |
In federal data
- NUCC code231HA2500X · Audiologist
- Size rank563rd of 688 specialties by records (0% of all)
- In its family3rd of 3 Audiologist codes, 0.3% of the family
- Concentration5 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 assistive technology supplier audiologist records
- Susan Sheehy, AU.DMadison, AL1760677462
- Jan Liles, AU.DMadison, AL1326233032
- Hannah Johnson, AUDMadison, AL1194399956
- Ronald Miller, MA, CCC-APeoria, AZ1942324991
- Robert Drew, AU.D., M.S., CCCPrescott, AZ1386762516
- Daniel Brown, HEARING AID DISPENSELos Angeles, CA1477601540
- Sharon Macduffee, AU.D.Los Angeles, CA1457347445
- Michael Stejskal, M.S.Temecula, CA1619949856
- Ronald Magnusson, AU.D.Ventura, CA1164507372
- Terence Russell, MASanta Cruz, CA1588702773
- Roswitha Hutcherson, AU.D.Carmichael, CA1508995317
- Crystal Chalmers, MSChico, CA1609949866
Registry order, not a ranking. Search by name to find one provider.
Common questions
Why is Assistive Technology Supplier Audiologist a thin NUCC code in NPPES?
Only 62 NPIs list Assistive Technology Supplier Audiologist as primary taxonomy across 25 states (peak New York, 8). That is 563rd of 688 NUCC codes by headcount. Thin codes are still searchable by NPI; do not treat the low count as a quality signal.
Where can I still find an Assistive Technology Supplier Audiologist?
Assistive Technology Supplier Audiologist providers are listed in 25 states; Madison leads by raw city count. By national headcount this code sits just above Medical Geneticist (PhD) Specialist/Technologist and just below Pulmonary Diagnostics Registered Respiratory Therapist. Browse by state or search by name.
What does NUCC code 231HA2500X mean?
Assistive Technology Supplier Audiologist is NUCC taxonomy 231HA2500X in the Audiologist group. Counts are self-designated primary taxonomy at NPI enrollment, not board certification.
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.