NPPES file of Aug 9, 2026

Ding Ngui

Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Rowland Heights, CA

Ding Ngui is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in Rowland Heights, California, and NPI 1124472493, issued on Apr 22, 2016. Check the license (California 48194, as entered in NPPES) 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124472493
Name
Ding Ngui
Primary taxonomy
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
License number
48194 CA
Self-reported in NPPES; status is on the state search
Practice location
18491 Colima RD, Rowland Heights, CA 91748
Phone
(626) 581-3133
Enumerated
Apr 22, 2016
Record last updated
Apr 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
46526 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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Also registered at 18491 Colima RD

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

  1. Matthew QingPharmacist1215879234

Verify Ding Ngui 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 48194
    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
Find the California license search

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Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs

24 Medicare Part D claims for 14 beneficiaries, against an average of 253 among the 1,614 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Ding Ngui24
  2. Specialty average253

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Shingrix24 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.

Ding Ngui among 1,593 pharmacist clinician (phc)/ clinical pharmacy specialist records in California

Ding Ngui is one of 1,593 pharmacist clinician (phc)/ clinical pharmacy specialist records with a practice address in California. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 55% of them.

  • NPI issued2016 · 55% of these records are older, 40% newer
  • In a Medicare fileYes · 17% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2021 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1835P0018X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 pharmacist clinician (phc)/ clinical pharmacy specialist records list a practice address in Rowland Heights

They are 3 of the 816 NPPES records with a practice address in Rowland Heights, and 1,593 pharmacist clinician (phc)/ clinical pharmacy specialist records in California.

The 8 pharmacist clinician (phc)/ clinical pharmacy specialist records with the nearest ZIP codes

  1. Gerald Chen, PHARM.D.Rowland Heights, CA 917481043807514
  2. James GuanRowland Heights, CA 917481952790677
  3. Catherine Nguyen, PHARMDCity Of Industry, CA 917481215222070
  4. Annie KimHacienda Heights, CA 917451437713815
  5. Mina DangEastvale, CA 917521104295468
  6. Carolina Lopez-Juarez, PHARM.D.Eastvale, CA 917521376086207
  7. Tomy VuongLa Puente, CA 917441235655499
  8. Ashlee Park, PHARMDMonterey Park, CA 917541558213298

Common questions

What is Ding Ngui's NPI number?

Ding Ngui's National Provider Identifier (NPI) is 1124472493, issued on Apr 22, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Ding Ngui located?

The NPPES record lists a practice address at 18491 Colima RD, Rowland Heights, CA, 91748. Phone: (626) 581-3133. Providers update this record themselves, so call before visiting.

How can I verify Ding Ngui's license?

NPPES lists California license number 48194, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Ding Ngui prescribe under Medicare Part D?

In 2024, Ding Ngui had 24 Medicare Part D claims for 14 beneficiaries; the average among pharmacist clinician (phc)/ clinical pharmacy specialist prescribers was 253. 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.