NPPES file of Aug 9, 2026

Hien Hoa T. Nguyen, RPH

Pharmacist · La Habra, CA

Hien Hoa T. Nguyen, RPH is a pharmacist with a practice address in La Habra, California, and NPI 1366758229, issued on Aug 29, 2010. Check the license (California 42415, 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
1366758229
Name
Hien Hoa T. Nguyen
Credential
RPH
Primary taxonomy
Pharmacist 183500000X
License number
42415 CA
Self-reported in NPPES; status is on the state search
Practice location
1700 W Whittier Blvd, La Habra, CA 90631
Phone
(562) 694-4367
Enumerated
Aug 29, 2010
Record last updated
Aug 29, 2010 (not updated in 16 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 1700 W Whittier Blvd

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

  1. Nhung PhanPharmacist1346409901
  2. Brian Vo, PHARMDPharmacist1154754315

Verify Hien Hoa T. Nguyen 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 42415
    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

69 Medicare Part D claims for 61 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 99% of claims.

  1. Hien Hoa Nguyen69
  2. Specialty average119

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. Arexvy23 claims
  2. Shingrix17 claims
  3. Abrysvo12 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.

Hien Hoa T. Nguyen among 32,533 pharmacist records in California

Hien Hoa T. Nguyen, 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. Its NPI, issued in 2010, is newer than 12% of them.

  • NPI issued2010 · 12% of these records are older, 82% newer
  • In a Medicare fileYes · 15% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2010 · 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).

73 pharmacist records list a practice address in La Habra

They are 73 of the 543 NPPES records with a practice address in La Habra, and 32,533 pharmacist records in California.

The 8 pharmacist records with the nearest ZIP codes

  1. Josefina Chua, RPHLa Habra, CA 906311487772919
  2. Stephanie Gaherty, PHARM.DLa Habra, CA 906311194997254
  3. Kevin KoLa Habra, CA 906311639490709
  4. Darren Koba, PHARMDLa Habra Heights, CA 906311720250251
  5. Daisy Kwok, RPHLa Habra, CA 906311164741344
  6. Hoi Nguyen, PHAR.DLa Habra, CA 906311487969978
  7. Yon Kyong PaeLa Habra, CA 906311336396084
  8. Nayan Patel, PHARMDLa Habra, CA 906311417129164

Common questions

What is Hien Hoa T. Nguyen, RPH's NPI number?

Hien Hoa T. Nguyen, RPH's National Provider Identifier (NPI) is 1366758229, issued on Aug 29, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Hien Hoa T. Nguyen, RPH located?

The NPPES record lists a practice address at 1700 W Whittier Blvd, La Habra, CA, 90631. Phone: (562) 694-4367. Providers update this record themselves, so call before visiting.

How can I verify Hien Hoa T. Nguyen, RPH's license?

NPPES lists California license number 42415, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Hien Hoa T. Nguyen, RPH prescribe under Medicare Part D?

In 2024, Hien Hoa T. Nguyen, RPH had 69 Medicare Part D claims for 61 beneficiaries; the average among pharmacist prescribers was 119. 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.