NPPES file of Aug 9, 2026

Charles Jeng, MD

General Practice Physician · Pomona, CA

Charles Jeng, MD is a general practice physician with a practice address in Pomona, California, and NPI 1326095266, issued on May 27, 2006. Check the license (California A34235, 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
1326095266
Name
Charles Jeng
Credential
MD
Primary taxonomy
General Practice Physician 208D00000X
License number
A34235 CA
Self-reported in NPPES; status is on the state search
Practice location
3530 W Pomona Blvd, Pomona, CA 91769
Phone
(909) 595-1221
Enumerated
May 27, 2006
Record last updated
Jul 13, 2026
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 3530 W Pomona Blvd

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

  1. Rachel Firemark, PSYDClinical Psychologist1801842810
  2. Joyce Hong, MDPediatrics Physician1831119155
  3. Yash Manchanda, PHDPsychologist1922028240
  4. Anh Nguyen, MDInternal Medicine Physician1942247192

Verify Charles Jeng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A34235
    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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99% fewer Medicare Part D claims than the average general practice physician in 2024

34 Medicare Part D claims, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.

  1. Charles Jeng34
  2. Specialty average3,030

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.

Charles Jeng among 1,956 general practice physician records in California

Charles Jeng, MD is one of 1,956 general practice physician records with a practice address in California. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 66% newer
  • In a Medicare fileYes · 48% of these records are
  • In the CMS Doctors and Clinicians fileNo · 27% of these records are
  • Record last updated2026 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Physician providers in California

There are 1,956 general practice physician records in California.

The 8 general practice physician records with the nearest ZIP codes

  1. Cuong Nghiem, MDPomona, CA 917691306892864
  2. Nit Wichenkuer, MDPonoma, CA 917691750337028
  3. Ming Chang Hsu, M.D.Rosemead, CA 917701073565461
  4. Shyh Mine Lii, M.D.Rosemead, CA 917701922150267
  5. Antonio Rodriguez, MDPomona, CA 917681255587820
  6. Ruben Ruiz, MDRosemead, CA 917701699701581
  7. Aruna Shah, MDPomona, CA 917681629130661
  8. Raheel Chaudhry, MDPomona, CA 917671790277507

Common questions

What is Charles Jeng, MD's NPI number?

Charles Jeng, MD's National Provider Identifier (NPI) is 1326095266, issued on May 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles Jeng, MD located?

The NPPES record lists a practice address at 3530 W Pomona Blvd, Pomona, CA, 91769. Phone: (909) 595-1221. Providers update this record themselves, so call before visiting.

How can I verify Charles Jeng, MD's license?

NPPES lists California license number A34235, 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 Charles Jeng, MD prescribe under Medicare Part D?

In 2024, Charles Jeng, MD had 34 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.