NPPES file of Aug 9, 2026

Diana Quyen Doan, PHARMD

Pharmacist · San Jose, CA

Diana Quyen Doan, PHARMD is a pharmacist with a practice address in San Jose, California, and NPI 1164082061, issued on Jun 13, 2019. Check the license (California 80544, 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
1164082061
Name
Diana Quyen Doan
Credential
PHARMD
Primary taxonomy
Pharmacist 183500000X
License number
80544 CA
Self-reported in NPPES; status is on the state search
Practice location
440 Blossom Hill RD, San Jose, CA 95123
Phone
(408) 229-8013
Enumerated
Jun 13, 2019
Record last updated
Jun 13, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(408) 229-8346
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 440 Blossom Hill RD

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

  1. Aya AlaadelPharmacist1104220888
  2. Herjot Atwal, PHARMDPharmacist1114342623
  3. Keith Chiu, PHARMDPharmacist1386348399
  4. Marina Danker, PHARM. DPharmacist1639459340
  5. Amy Duong, PHARM. D.Pharmacist1215205737
  6. Sadaf Emad-Vaez, RPHPharmacist1609508233

Verify Diana Quyen Doan 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 80544
    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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Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs

34 Medicare Part D claims for 32 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Diana Doan34
  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. Arexvy16 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.

Diana Quyen Doan among 32,533 pharmacist records in California

Diana Quyen Doan, PHARMD 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 2019, is newer than 67% of them.

  • NPI issued2019 · 67% of these records are older, 27% 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 updated2019 · 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.

The 8 pharmacist records with the nearest ZIP codes

  1. Wayne Chan, PHARM DSan Jose, CA 951231326348483
  2. Yolanda ChaoSan Jose, CA 951231174801302
  3. Marina Danker, PHARM. DSan Jose, CA 951231639459340
  4. Rashi Dhanota, RPHSan Jose, CA 951231720357189
  5. Hang Do, PHARM DSan Jose, CA 951231790948206
  6. Amy Duong, PHARM. D.San Jose, CA 951231215205737
  7. Jismol JohnSan Jose, CA 951231679842546
  8. Charlene Laurel, RPHSan Jose, CA 951231114247038

Common questions

What is Diana Quyen Doan, PHARMD's NPI number?

Diana Quyen Doan, PHARMD's National Provider Identifier (NPI) is 1164082061, issued on Jun 13, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Diana Quyen Doan, PHARMD located?

The NPPES record lists a practice address at 440 Blossom Hill RD, San Jose, CA, 95123. Phone: (408) 229-8013. Providers update this record themselves, so call before visiting.

How can I verify Diana Quyen Doan, PHARMD's license?

NPPES lists California license number 80544, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Diana Quyen Doan, PHARMD prescribe under Medicare Part D?

In 2024, Diana Quyen Doan, PHARMD had 34 Medicare Part D claims for 32 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.