NPPES file of Aug 9, 2026

Mary Katherine Donegan, AUD

Audiologist · Sacramento, CA

Mary Katherine Donegan, AUD is an audiologist with a practice address in Sacramento, California, and NPI 1750133658, issued on Apr 3, 2024. Check the license 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
1750133658
Name
Mary Katherine Donegan
Credential
AUD
Primary taxonomy
Audiologist 231H00000X
Practice location
601 University Ave Ste 105, Sacramento, CA 95825
Phone
(916) 974-9833
Enumerated
Apr 3, 2024
Record last updated
Apr 3, 2024
Medicare enrollment
Enrolled (PECOS I20250311002763); accepts Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 2024
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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Also registered at 601 University Ave Ste 105

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

  1. Charles Sanders, AU.D.Audiologist-Hearing Aid Fitter1356486708

Verify Mary Katherine Donegan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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. Kimberly Bonney Aud IncRocklin, CA

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

Mary Katherine Donegan among 1,561 audiologist records in California

Mary Katherine Donegan, AUD is one of 1,561 audiologist records with a practice address in California. 23% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 88% of them.

  • NPI issued2024 · 88% of these records are older, 8% newer
  • In a Medicare fileYes · 23% of these records are
  • In the CMS Doctors and Clinicians fileYes · 28% of these records are
  • Graduated2024 · median 2014 among the 433 with a school on file
  • Record last updated2024 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 231H00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Audiologist providers in California

There are 1,561 audiologist records in California.

The 8 audiologist records with the nearest ZIP codes

  1. Julie Adamson, AU.D.Sacramento, CA 958251558439562
  2. Julia Ahlquist Tanner, AUDSacramento, CA 958251962438309
  3. Michelle Barry, AU.D.Sacramento, CA 958251902078884
  4. Carolyn Cooper, MA CCCASacramento, CA 958251972664746
  5. Melissa Deyo, MSSacramento, CA 958251407915234
  6. Cynthia Fetherston, M.SSacramento, CA 958251144381740
  7. Catherine Greenhouse, M.S. CCC-ASacramento, CA 958251609871177
  8. Gayle L'Etoile, M.S.Sacramento, CA 958251295761567

Common questions

What is Mary Katherine Donegan, AUD's NPI number?

Mary Katherine Donegan, AUD's National Provider Identifier (NPI) is 1750133658, issued on Apr 3, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Mary Katherine Donegan, AUD located?

The NPPES record lists a practice address at 601 University Ave Ste 105, Sacramento, CA, 95825. Phone: (916) 974-9833. Providers update this record themselves, so call before visiting.

How can I verify Mary Katherine Donegan, AUD's license?

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.

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.