NPPES file of Aug 9, 2026

Yun - Chih Chen, AU.D.

Audiologist · San Mateo, CA

Yun - Chih Chen, AU.D. is an audiologist with a practice address in San Mateo, California, and NPI 1740524602, issued on Nov 16, 2012. Check the license (California AU3075, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1740524602
Name
Yun - Chih Chen
Credential
AU.D.
Primary taxonomy
Audiologist 231H00000X
License numbers
AU3075 CA
80439 TX
Self-reported in NPPES; status is on the state search
Practice location
100 S Ellsworth Ave, San Mateo, CA 94401
Phone
(650) 579-4470
Enumerated
Nov 16, 2012
Record last updated
Jul 6, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(650) 579-4471
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 100 S Ellsworth Ave

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

  1. John BradshawPsychologist1144395815
  2. Ru ChenStudent in an Organized Health Care Education/Training Program1588958672
  3. Rebecca ForrestPhysician Assistant1306293048
  4. Sylvie GalerneauDentist1417220898
  5. Laurel King, PAPhysician Assistant1508954132
  6. Tatyana Manyak, DDSGeneral Practice Dentistry1477572501

Verify Yun - Chih Chen 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 AU3075
    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

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Audiologist providers in California

There are 1,561 audiologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other audiologist records in California

  1. Edward Abalos, AU.D.Long Beach, CA1447445986
  2. Cassandra Abbinanti, AUDPomona, CA1619747466
  3. Debra Abel, AU.D.Poway, CA1073519955
  4. Kasra Abolhosseini, AUDTustin, CA1083123129
  5. Janely Abootorabi, AU.D.Santa Clara, CA1588236483
  6. Maria Abramson, AU.DSan Juan Capistrano, CA1396079851
  7. Amanda Abrisch, AUDLa Jolla, CA1780966903
  8. Zachary Abt, AUDPasadena, CA1790522712
  9. Rachel Abucasis, AUDLos Angeles, CA1659090231
  10. Reid AdamsVisalia, CA1184897324

Common questions

What is Yun - Chih Chen, AU.D.'s NPI number?

Yun - Chih Chen, AU.D.'s National Provider Identifier (NPI) is 1740524602, issued on Nov 16, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Yun - Chih Chen, AU.D. located?

The NPPES record lists a practice address at 100 S Ellsworth Ave, San Mateo, CA, 94401. Phone: (650) 579-4470. Providers update this record themselves, so call before visiting.

How can I verify Yun - Chih Chen, AU.D.'s license?

NPPES lists California license number AU3075, 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. An NPI identifies who bills; it 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.