NPPES file of Aug 9, 2026

Hearing Instrument Specialist in Michigan

359 NPPES records list hearing instrument specialist with a practice address in Michigan, 3.6 per 100,000 residents, the 22nd highest rate of 51. Grand Rapids and Saginaw have the most; each record links to the provider's NPI and the Michigan license search. Page 8 of 8.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 237700000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Grand Rapids has the most, 22

  1. Grand Rapids22
  2. Saginaw14
  3. Traverse City14
  4. Flint12
  5. Lansing9

Hearing Instrument Specialist records in Michigan

  1. Kathleen Wirtz, HEARING AID DEALERBattle Creek, MI 490171083924799
  2. Therese Wolf, BA, ACA, BC-HISGrand Rapids, MI 495071306849997
  3. Nicole Wormell, HISCharlevoix, MI 497201487427498
  4. Hillary WrightFarmington Hills, MI 483341760805014
  5. Tara YacoubCommerce Twp, MI 483821770122590
  6. Debra YuhasPlymouth, MI 481701811529837
  7. Harold Zells, HEARING AID SPECIALIFrankenmuth, MI 487341699145243
  8. Dustin ZimmermanSaginaw, MI 486031023654175
  9. Jason ZimostradFlint, MI 485071881001287

Source: CMS NPPES, primary taxonomy 237700000X: records by practice city and the list of records, file of Aug 9, 2026.

Michigan ranks 22 of 51 per resident

  1. New Mexico3.7
  2. Arizona3.6
  3. Washington3.6
  4. Michigan3.6
  5. Pennsylvania3.4
  6. Nebraska3.4
  7. 50 states and D.C.3.2

Source: CMS NPPES, primary taxonomy 237700000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.0% of these records appear in a Medicare file, against 0.1% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Michigan0.0%
  2. United States0.1%

Hearing Instrument Specialist records in Michigan, measured

  • In a Medicare file0 of 359 · 0.0% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file1 · 0.3% here, 0.2% nationally
  • Not updated in five years or more243 · 67.7% here, 65.3% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 237700000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

359 NPPES records list hearing instrument specialist (237700000X) as their primary taxonomy with a practice address in Michigan: 3.6 per 100,000 residents against 3.2 nationally (50 states and D.C.). Grand Rapids has 22 of them (6%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Ohio370
  2. New York330
  3. Wisconsin329
  4. North Carolina324

States with a similar rate per 100,000

  1. Washington3.6
  2. Arizona3.6
  3. Pennsylvania3.4
  4. Nebraska3.4

The largest states

  1. Florida1,129
  2. California994
  3. Texas828
  4. Pennsylvania447
  5. Illinois408

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

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.