Ellen T. Nguyen, PHARM.D.
Pharmacist · San Ramon, CA
Ellen T. Nguyen, PHARM.D. is a pharmacist with a practice address in San Ramon, California, and NPI 1992863963, issued on Dec 4, 2006. Check the license (California 53948, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellen T. Nguyen
- Credential
- PHARM.D.
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 53948 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2300 Camino Ramon, San Ramon, CA 94583
- Phone
- (925) 244-7316
- Enumerated
- Dec 4, 2006
- Record last updated
- Nov 23, 2021 (not updated in 5 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 2300 Camino Ramon
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ellen T. 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 53948Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14.4 times the Medicare Part D claims of the average pharmacist in 2024
1,709 Medicare Part D claims for 277 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Atorvastatin Calcium227 claims
- Ozempic220 claims
- Metformin Hcl Er173 claims
- Metformin Hcl171 claims
- Glipizide108 claims
- Jardiance83 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.
Ellen T. Nguyen among 32,533 pharmacist records in California
Ellen T. Nguyen, PHARM.D. 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 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 94% 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 updated2021 · 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).
68 pharmacist records list a practice address in San Ramon
They are 68 of the 2,281 NPPES records with a practice address in San Ramon, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in San Ramon → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Rachel ArellanoSan Ramon, CA 945831518267665
- Babita BhaktaSan Ramon, CA 945831841576501
- Asha BikkinaSan Ramon, CA 945831013276419
- Maria Dondero, PHARM.D.San Ramon, CA 945831174842751
- Ngami HaSan Ramon, CA 945831073890745
- Ines KwongSan Ramon, CA 945831013263805
- Mary Moore, PHARM.D.San Ramon, CA 945831922396456
- Sima Nikpour, PHARM.DSan Ramon, CA 945831447418884
Common questions
What is Ellen T. Nguyen, PHARM.D.'s NPI number?
Ellen T. Nguyen, PHARM.D.'s National Provider Identifier (NPI) is 1992863963, issued on Dec 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ellen T. Nguyen, PHARM.D. located?
The NPPES record lists a practice address at 2300 Camino Ramon, San Ramon, CA, 94583. Phone: (925) 244-7316. Providers update this record themselves, so call before visiting.
How can I verify Ellen T. Nguyen, PHARM.D.'s license?
NPPES lists California license number 53948, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ellen T. Nguyen, PHARM.D. prescribe under Medicare Part D?
In 2024, Ellen T. Nguyen, PHARM.D. had 1,709 Medicare Part D claims for 277 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.