Theresa Nguyen, PHARM.D.
Ambulatory Care Pharmacist · San Jose, CA
Theresa Nguyen, PHARM.D. is an ambulatory care pharmacist with a practice address in San Jose, California, and NPI 1861565970, issued on Nov 16, 2006. Check the license (California 57674, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Theresa Nguyen
- Credential
- PHARM.D.
- Primary taxonomy
- Ambulatory Care Pharmacist 1835P2201X
- License numbers
- 57674 CA
RPH 57674 CA
Self-reported in NPPES; status is on the state search - Practice location
- 260 International Cir, San Jose, CA 95119
- Phone
- (408) 972-6474
- Enumerated
- Nov 16, 2006
- Record last updated
- Mar 25, 2024
- Entity
- Type 1 · individual
8 nearest ambulatory care pharmacist records → All 485 in California → Look up another NPI →
Also registered at 260 International Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Theresa 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 57674Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% more Medicare Part D claims than the average ambulatory care pharmacist in 2024
596 Medicare Part D claims for 144 beneficiaries, against an average of 527 among the 449 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.
Most prescribed
- Ozempic80 claims
- Atorvastatin Calcium74 claims
- Metformin Hcl Er62 claims
- Glipizide38 claims
- Metformin Hcl30 claims
- Humulin N Kwikpen29 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.
Theresa Nguyen among 485 ambulatory care pharmacist records in California
Theresa Nguyen, PHARM.D. is one of 485 ambulatory care pharmacist records with a practice address in California. 39% 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 0% of them.
- NPI issued2006 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 39% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1835P2201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ambulatory Care Pharmacist providers in California
There are 485 ambulatory care pharmacist records in California.
All 485 in California → Every provider in San Jose → Ambulatory Care Pharmacist nationwide →
The 8 ambulatory care pharmacist records with the nearest ZIP codes
- Leah Arnbrecht, PHARM.DSan Jose, CA 951191881141521
- Joyce Cheung, PHARM.D. BCPP BCACPSan Jose, CA 951191013467125
- Lan Duong, PHARMDSan Jose, CA 951191295281160
- Gillian Gonzales, PHARM DSan Jose, CA 951191851024772
- Alexander Luong, PHARM.D.San Jose, CA 951191164870796
- Uyen NguyenSan Jose, CA 951191831649946
- Neerali PatelSan Jose, CA 951191154865053
- Beckie SiuSan Jose, CA 951191437609492
Common questions
What is Theresa Nguyen, PHARM.D.'s NPI number?
Theresa Nguyen, PHARM.D.'s National Provider Identifier (NPI) is 1861565970, issued on Nov 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Nguyen, PHARM.D. located?
The NPPES record lists a practice address at 260 International Cir, San Jose, CA, 95119. Phone: (408) 972-6474. Providers update this record themselves, so call before visiting.
How can I verify Theresa Nguyen, PHARM.D.'s license?
NPPES lists California license number 57674, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Theresa Nguyen, PHARM.D. prescribe under Medicare Part D?
In 2024, Theresa Nguyen, PHARM.D. had 596 Medicare Part D claims for 144 beneficiaries; the average among ambulatory care pharmacist prescribers was 527. 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.