NPPES file of Aug 9, 2026

Brian Michael Duguay, AUD

Audiologist-Hearing Aid Fitter · Napa, CA

Brian Michael Duguay, AUD is an audiologist-hearing aid fitter with a practice address in Napa, California, and NPI 1558449561, issued on Nov 1, 2006. Check the license (California AU2299, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558449561
Name
Brian Michael Duguay
Credential
AUD
Primary taxonomy
Audiologist-Hearing Aid Fitter 237600000X
License number
AU2299 CA
Self-reported in NPPES; status is on the state search
Practice location
3443 Villa LN, Napa, CA 94558
Phone
(707) 252-0990
Enumerated
Nov 1, 2006
Record last updated
Mar 24, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(707) 252-9077
Medicare enrollment
Enrolled (PECOS I20090715000044); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest audiologist-hearing aid fitter records → All 421 in California → Look up another NPI →

Also registered at 3443 Villa LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Keiko Aikawa, MDCardiovascular Disease Physician1194808121
  2. Manoj Eapen, M.D.Interventional Cardiology Physician1801892666
  3. David Freeto, M.D.Gastroenterology Physician1386735918
  4. William Huson, AU.D.Audiologist1013377605
  5. Sergio Manubens, MDInterventional Cardiology Physician1487634879
  6. Brian Mundy, M.D.Cardiovascular Disease Physician1225026180

Verify Brian Michael Duguay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license AU2299    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Microtone Audiology, Inc.Napa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Brian Michael Duguay among 421 audiologist-hearing aid fitter records in California

Brian Michael Duguay, AUD is one of 421 audiologist-hearing aid fitter records with a practice address in California. 18% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 74% newer
  • In a Medicare fileYes · 18% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated2008 · median 2009 among the 107 with a school on file
  • Record last updated2015 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 237600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Audiologist-Hearing Aid Fitter providers in California

There are 421 audiologist-hearing aid fitter records in California.

All 421 in California → Every provider in Napa → Audiologist-Hearing Aid Fitter nationwide →

The 8 audiologist-hearing aid fitter records with the nearest ZIP codes

  1. Nazanin Nooraei, AUDNapa, CA 945581982087383
  2. Ellen PfauNapa, CA 945581982777447
  3. Kara Haupt, M.S.Martinez, CA 945531881951960
  4. Harry McLeod, PH.DLivermore, CA 945501861645749
  5. Daniel Krass, AU.D.Fremont, CA 945381003537218
  6. Marion Dellamonica, AU.D.Union City, CA 945871447616677
  7. Robert Der, M.SC.Vallejo, CA 945891184781403
  8. Marissa Gilger, AUDVallejo, CA 945891629625439

Common questions

What is Brian Michael Duguay, AUD's NPI number?

Brian Michael Duguay, AUD's National Provider Identifier (NPI) is 1558449561, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian Michael Duguay, AUD located?

The NPPES record lists a practice address at 3443 Villa LN, Napa, CA, 94558. Phone: (707) 252-0990. Providers update this record themselves, so call before visiting.

How can I verify Brian Michael Duguay, AUD's license?

NPPES lists California license number AU2299, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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

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.