NPPES file of Aug 9, 2026

William Churk-Nam Auyeung, M.D.

Pulmonary Disease Physician · Fremont, CA

William Churk-Nam Auyeung, M.D. is a pulmonary disease physician with a practice address in Fremont, California, and NPI 1922365857, issued on Apr 17, 2012. Check the license (California A135659, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922365857
Name
William Churk-Nam Auyeung
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License numbers
A135659 CA
BP10043073 TX
Self-reported in NPPES; status is on the state search
Practice location
39400 Paseo Padre Pkwy, Fremont, CA 94538
Phone
(510) 248-3000
Enumerated
Apr 17, 2012
Record last updated
Nov 18, 2022
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.
Download card Updates feed

Also registered at 39400 Paseo Padre Pkwy

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

  1. Denise Agatep, LCSWCounselor1164584900
  2. Ujwala Agharkar, MDChild & Adolescent Psychiatry Physician1073685723
  3. Dolly Ahluwalia, RDRegistered Dietitian1659429157
  4. Tabassum Alam, MDHospitalist Physician1306921069
  5. Mary Alyono, MDAnesthesiology Physician1477631059
  6. Stephanie Aoki, PHDPsychologist1427721216

Verify William Churk-Nam Auyeung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A135659
    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
Open 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $121.84

1 payment: food and beverage; the largest payer was Genzyme Corporation. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Auyeung$121.84
  2. Specialty average$5,159.88

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

William Churk-Nam Auyeung among 1,443 pulmonary disease physician records in California

William Churk-Nam Auyeung, M.D. is one of 1,443 pulmonary disease physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 74% of them.

  • NPI issued2012 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 74% of these records are
  • Record last updated2022 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in California

There are 1,443 pulmonary disease physician records in California.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Jason Chu, M.D.Fremont, CA 945381972521060
  2. Marco Pavesi, M.D.Fremont, CA 945381457379554
  3. Samir Vora, M.D.Fremont, CA 945381376562629
  4. Ajit Sandhu, M.D.Fremont, CA 945361306953724
  5. David Carlson, MDTravis Afb, CA 945351043292238
  6. Katherine Dittman, DOFairfield, CA 945351316486129
  7. Rocky Fox, DOTravis Afb, CA 945351346746914
  8. Cherie Renaud, MDTravis Afb, CA 945351013455377

Common questions

What is William Churk-Nam Auyeung, M.D.'s NPI number?

William Churk-Nam Auyeung, M.D.'s National Provider Identifier (NPI) is 1922365857, issued on Apr 17, 2012. An NPI identifies a provider in billing; it is not a license.

Where is William Churk-Nam Auyeung, M.D. located?

The NPPES record lists a practice address at 39400 Paseo Padre Pkwy, Fremont, CA, 94538. Phone: (510) 248-3000. Providers update this record themselves, so call before visiting.

How can I verify William Churk-Nam Auyeung, M.D.'s license?

NPPES lists California license number A135659, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.