Kathelen Nguyen
Pharmacist · Fullerton, CA
Kathelen Nguyen is a pharmacist with a practice address in Fullerton, California, and NPI 1952683096, issued on Sep 14, 2011. Check the license (California 50526, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathelen Nguyen
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 50526 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1250 E Chapman Ave, Fullerton, CA 92831
- Phone
- (714) 680-9124
- Enumerated
- Sep 14, 2011
- Record last updated
- Sep 14, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 1250 E Chapman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Naty Long, PHARMDPharmacist1265947360
- Earl SatoPharmacist1972870830
- Ellen ToPharmacist1558644278
- Minh Vong, PHARMDPharmacist1417497769
Verify Kathelen Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 50526Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 94% of the cost of the top drugs
72 Medicare Part D claims for 55 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.
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.
- Abrysvo29 claims
- Shingrix25 claims
- Boostrix Tdap14 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.
Kathelen Nguyen among 32,533 pharmacist records in California
Kathelen Nguyen 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 2011, is newer than 18% of them.
- NPI issued2011 · 18% of these records are older, 72% 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 updated2011 · 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).
144 pharmacist records list a practice address in Fullerton
They are 144 of the 5,437 NPPES records with a practice address in Fullerton, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Fullerton → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Kiok BaeFullerton, CA 928311932272192
- Cheyenne Chang, PHARMD, RPHFullerton, CA 928311407246044
- John Ching, RPHFullerton, CA 928311932427184
- Deborah ChowFullerton, CA 928311194002352
- Frank DanielFullerton, CA 928311972841674
- Sandra Davis, PHARMDFullerton, CA 928311396066270
- Barbara Gee, PHARM.DFullerton, CA 928311962622316
- Phong Ly, PHARM. D.Fullerton, CA 928311386846343
Common questions
What is Kathelen Nguyen's NPI number?
Kathelen Nguyen's National Provider Identifier (NPI) is 1952683096, issued on Sep 14, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Kathelen Nguyen located?
The NPPES record lists a practice address at 1250 E Chapman Ave, Fullerton, CA, 92831. Phone: (714) 680-9124. Providers update this record themselves, so call before visiting.
How can I verify Kathelen Nguyen's license?
NPPES lists California license number 50526, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Kathelen Nguyen prescribe under Medicare Part D?
In 2024, Kathelen Nguyen had 72 Medicare Part D claims for 55 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.