NPPES file of Aug 9, 2026

Chau Ong, RPH

Pharmacist · San Jose, CA

Chau Ong, RPH is a pharmacist with a practice address in San Jose, California, and NPI 1821523069, issued on Apr 25, 2017. Check the license (California RPH74134, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1821523069
Name
Chau Ong
Credential
RPH
Primary taxonomy
Pharmacist 183500000X
License number
RPH74134 CA
Self-reported in NPPES; status is on the state search
Practice location
350 N Capitol Ave, San Jose, CA 95133
Phone
(408) 259-9200
Enumerated
Apr 25, 2017
Record last updated
Apr 25, 2017 (not updated in 9 years: call before relying on the address or phone)
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 350 N Capitol Ave

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

  1. Harjit Bains, PHARMDPharmacist1881961886
  2. Michele Horio, PHARMDPharmacist1356618946
  3. Kathy NguyenPharmacist1558197301
  4. Guey-Chyn SheenPharmacist1205103710
  5. Harpreet Singh, RPHPharmacist1134406432
  6. Duy Tran, PHARMDPharmacist1609147735

Verify Chau Ong 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 RPH74134
    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

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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Chau Ong among 32,533 pharmacist records in California

Chau Ong, RPH is one of 32,533 pharmacist records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2017, is newer than 53% of them.

  • NPI issued2017 · 53% of these records are older, 39% newer
  • In a Medicare fileNo · 15% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2017 · 76% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

893 pharmacist records list a practice address in San Jose

They are 893 of the 20,925 NPPES records with a practice address in San Jose, and 32,533 pharmacist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pharmacist records with the nearest ZIP codes

  1. Harjit Bains, PHARMDSan Jose, CA 951331881961886
  2. Michele Horio, PHARMDSan Jose, CA 951331356618946
  3. Hoang Le, PHARM.DSan Jose, CA 951331811247984
  4. Sonia Mateo, RPHSan Jose, CA 951331952663874
  5. Quochung NguyenSan Jose, CA 951331699166975
  6. Chandni Patel, PHARMDSan Jose, CA 951331265035778
  7. Guey-Chyn SheenSan Jose, CA 951331205103710
  8. Harpreet Singh, RPHSan Jose, CA 951331134406432

Common questions

What is Chau Ong, RPH's NPI number?

Chau Ong, RPH's National Provider Identifier (NPI) is 1821523069, issued on Apr 25, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Chau Ong, RPH located?

The NPPES record lists a practice address at 350 N Capitol Ave, San Jose, CA, 95133. Phone: (408) 259-9200. Providers update this record themselves, so call before visiting.

How can I verify Chau Ong, RPH's license?

NPPES lists California license number RPH74134, as entered by the provider. 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. 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.