NPPES file of Aug 9, 2026

Jenny Diemmy Nguyen, PHARMD

Pharmacist · Garden Grove, CA

Jenny Diemmy Nguyen, PHARMD is a pharmacist with a practice address in Garden Grove, California, and NPI 1710596986, issued on Jul 23, 2020. Check the license (California 80657, 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
1710596986
Name
Jenny Diemmy Nguyen
Credential
PHARMD
Primary taxonomy
Pharmacist 183500000X
License number
80657 CA
Self-reported in NPPES; status is on the state search
Practice location
13872 Harbor Blvd Ste 1A, Garden Grove, CA 92843
Phone
(714) 554-4754
Enumerated
Jul 23, 2020
Record last updated
Jul 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(714) 554-4854
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 Jenny Diemmy 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 80657
    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
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90% fewer Medicare Part D claims than the average pharmacist in 2024

12 Medicare Part D claims for 11 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. Jenny Nguyen12
  2. Specialty average119

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.

Jenny Diemmy Nguyen among 32,533 pharmacist records in California

Jenny Diemmy Nguyen, 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 2020, is newer than 73% of them.

  • NPI issued2020 · 73% of these records are older, 21% 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 updated2020 · 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).

220 pharmacist records list a practice address in Garden Grove

They are 220 of the 4,572 NPPES records with a practice address in Garden Grove, and 32,533 pharmacist records in California.

The 8 pharmacist records with the nearest ZIP codes

  1. Vincent Dng, PHARMDGarden Grove, CA 928431558682310
  2. Henry Gotterer, PHARMDGarden Grove, CA 928431073667473
  3. Lam Huynh, R.PHGarden Grove, CA 928431437142221
  4. Binh Mac, PHARMDGarden Grove, CA 928431437460391
  5. Barry Meizel, PHARMACISTGarden Grove, CA 928431912208885
  6. Hoan NguyenGarden Grove, CA 928431770576225
  7. Tiffany Nguyen, PHARM D.Garden Grove, CA 928431750618104
  8. Thuy Tien Nguyen, PHARM DGarden Grove, CA 928431902125081

Common questions

What is Jenny Diemmy Nguyen, PHARMD's NPI number?

Jenny Diemmy Nguyen, PHARMD's National Provider Identifier (NPI) is 1710596986, issued on Jul 23, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Jenny Diemmy Nguyen, PHARMD located?

The NPPES record lists a practice address at 13872 Harbor Blvd Ste 1A, Garden Grove, CA, 92843. Phone: (714) 554-4754. Providers update this record themselves, so call before visiting.

How can I verify Jenny Diemmy Nguyen, PHARMD's license?

NPPES lists California license number 80657, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Jenny Diemmy Nguyen, PHARMD prescribe under Medicare Part D?

In 2024, Jenny Diemmy Nguyen, PHARMD had 12 Medicare Part D claims for 11 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.