NPPES file of Aug 9, 2026

Huei-Chen Hsu, MS

Pharmacist · Walnut, CA

Huei-Chen Hsu, MS is a pharmacist with a practice address in Walnut, California, and NPI 1831754233, issued on May 1, 2019. Check the license (California 56839, 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
1831754233
Name
Huei-Chen Hsu
Credential
MS
Primary taxonomy
Pharmacist 183500000X
License number
56839 CA
Self-reported in NPPES; status is on the state search
Practice location
21590 East Valley Blvd., Walnut, CA 91789
Phone
(909) 444-7807
Enumerated
May 1, 2019
Record last updated
May 1, 2019 (not updated in 7 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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Verify Huei-Chen Hsu 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 56839    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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25 pharmacist records list a practice address in Walnut

They are 25 of the 317 NPPES records with a practice address in Walnut, and 32,533 pharmacist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 25 in Walnut → All 32,533 in California → Every provider in Walnut →

Other pharmacist records in California

  1. Caroline A-Haja, PHARM.D.San Pedro, CA1851664361
  2. Gayatri AachiLivermore, CA1235660754
  3. Adrian Karlos Aala, PHARMD, RPHHayward, CA1023955499
  4. Mahshid Aalam, PHARMDLos Angeles, CA1659086155
  5. Jaleh AaliiveliSan Ramon, CA1336629963
  6. Cassi Aarvig, RPHTracy, CA1023679941
  7. Meara Michi AbadOrange, CA1750181178
  8. Nader Abadier, RPHFontana, CA1326255647
  9. Samia Abadier, RPHFontana, CA1548742836
  10. Sandy Abadir, RPHChino Hills, CA1811644412

Common questions

What is Huei-Chen Hsu, MS's NPI number?

Huei-Chen Hsu, MS's National Provider Identifier (NPI) is 1831754233, issued on May 1, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Huei-Chen Hsu, MS located?

The NPPES record lists a practice address at 21590 East Valley Blvd., Walnut, CA, 91789. Phone: (909) 444-7807. Providers update this record themselves, so call before visiting.

How can I verify Huei-Chen Hsu, MS's license?

NPPES lists California license number 56839, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.