NPPES file of Aug 9, 2026

Timothy Kong Yau Ng

Emergency Medicine Physician · Fresno, CA

Timothy Kong Yau Ng is an emergency medicine physician with a practice address in Fresno, California, and NPI 1346669298, issued on Apr 8, 2014. Check the license (California A138498, 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
1346669298
Name
Timothy Kong Yau Ng
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A138498 CA
Self-reported in NPPES; status is on the state search
Practice location
155 N Fresno St, Fresno, CA 93701
Phone
(559) 499-6400
Enumerated
Apr 8, 2014
Record last updated
Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20181212002312); accepts Medicare assignment
Medical or professional school
University Of Hawaii John A. Burns School Of Medicine, 2014
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 155 N Fresno St

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

  1. Waleed AbdelfattahStudent in an Organized Health Care Education/Training Program1982544359
  2. Khaled Mohammed Abdullah, MBBSStudent in an Organized Health Care Education/Training Program1003552472
  3. Mohammad Abidali, MDStudent in an Organized Health Care Education/Training Program1174383764
  4. Charlie Abraham, MDSleep Medicine (Internal Medicine) Physician1588841043
  5. Luke Adams, MDStudent in an Organized Health Care Education/Training Program1497458855
  6. Yasmeen Afridi, DOStudent in an Organized Health Care Education/Training Program1548964489

Verify Timothy Kong Yau Ng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A138498
    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.

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44% fewer Medicare Part D claims than the average emergency medicine physician in 2024

126 Medicare Part D claims for 88 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 18 claims were for opioids.

  1. Timothy Ng126
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Permanente Medical Group IncRichmond, CA

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

Timothy Kong Yau Ng among 7,751 emergency medicine physician records in California

Timothy Kong Yau Ng is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 69% of them.

  • NPI issued2014 · 69% of these records are older, 28% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2014 · median 2011 among the 4,560 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

228 emergency medicine physician records list a practice address in Fresno

They are 228 of the 19,440 NPPES records with a practice address in Fresno, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Deena Bengiamin, M.DFresno, CA 937011174848444
  2. Sara Caldwell, M.D.Fresno, CA 937011972731990
  3. Michael Cawdery, MDFresno, CA 937011295735538
  4. Quetzalsol Chacon-Lopez, M.D., M.P.H.Fresno, CA 937011295979425
  5. Kira EandiFresno, CA 937011184858896
  6. Leticia Escoto, MDFresno, CA 937011649387309
  7. David Hakkarinen, M.D.Fresno, CA 937011659601284
  8. Luc Hibbs, MDFresno, CA 937011124342753

Common questions

What is Timothy Kong Yau Ng's NPI number?

Timothy Kong Yau Ng's National Provider Identifier (NPI) is 1346669298, issued on Apr 8, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Timothy Kong Yau Ng located?

The NPPES record lists a practice address at 155 N Fresno St, Fresno, CA, 93701. Phone: (559) 499-6400. Providers update this record themselves, so call before visiting.

How can I verify Timothy Kong Yau Ng's license?

NPPES lists California license number A138498, 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.

How much does Timothy Kong Yau Ng prescribe under Medicare Part D?

In 2024, Timothy Kong Yau Ng had 126 Medicare Part D claims for 88 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions 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.