NPPES file of Aug 9, 2026

Cynthia Louise Martzen, MA

Audiologist · Fresno, CA

Cynthia Louise Martzen, MA is an audiologist with a practice address in Fresno, California, and NPI 1720086978, issued on Jul 12, 2005. Check the license (California AU1171, 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
1720086978
Name
Cynthia Louise Martzen
Credential
MA
Primary taxonomy
Audiologist 231H00000X
License number
AU1171 CA
Self-reported in NPPES; status is on the state search
Practice location
1351 E Spruce, Fresno, CA 93720
Phone
(559) 432-5973
Enumerated
Jul 12, 2005
Record last updated
Jul 17, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(559) 432-5973
Medicaid ID
AU0011710 CA
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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Verify Cynthia Louise Martzen 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 AU1171    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
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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.

All 1,561 in California → Every provider in Fresno →

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 Cynthia Louise Martzen, MA's NPI number?

Cynthia Louise Martzen, MA's National Provider Identifier (NPI) is 1720086978, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Cynthia Louise Martzen, MA located?

The NPPES record lists a practice address at 1351 E Spruce, Fresno, CA, 93720. Phone: (559) 432-5973. Providers update this record themselves, so call before visiting.

How can I verify Cynthia Louise Martzen, MA's license?

NPPES lists California license number AU1171, 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.

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.