Stephen Villar-Fong Choy, PHARMD
Pharmacist · Union City, CA
Stephen Villar-Fong Choy, PHARMD is a pharmacist with a practice address in Union City, California, and NPI 1083492862, issued on Sep 21, 2023. Check the license (California 88653, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephen Villar-Fong Choy
- Credential
- PHARMD
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 88653 CA
Self-reported in NPPES; status is on the state search - Practice location
- 31836 Alvarado Blvd, Union City, CA 94587
- Phone
- (510) 489-3955
- Enumerated
- Sep 21, 2023
- Record last updated
- Sep 30, 2023
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 31836 Alvarado Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sylvia Tong, RPHPharmacist1336468826
Verify Stephen Villar-Fong Choy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 88653Check 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, 90% of the cost of the top drugs
424 Medicare Part D claims for 318 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.
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.
- Arexvy122 claims
- Boostrix Tdap117 claims
- Shingrix100 claims
- Abrysvo46 claims
- Twinrix18 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.
Stephen Villar-Fong Choy among 32,533 pharmacist records in California
Stephen Villar-Fong Choy, 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 2023, is newer than 88% of them.
- NPI issued2023 · 88% of these records are older, 8% 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 updated2023 · 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).
75 pharmacist records list a practice address in Union City
They are 75 of the 1,006 NPPES records with a practice address in Union City, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Union City → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Nada Alkhairulla, RPHUnion City, CA 945871841511755
- Gira Bhayani, PHARM.DUnion City, CA 945871518154434
- Tom Bui, PHARM.DUnion City, CA 945871083943112
- Tania ChopraUnion City, CA 945871013172444
- Vanessa Ho, B.SC. IN PHARMACYUnion City, CA 945871205155694
- Keith Imazumi, RPHUnion City, CA 945871053502443
- Pratiti Jain, PHARMDUnion City, CA 945871336304617
- Thucdoan Le, PHARM.D.Union City, CA 945871841527611
Common questions
What is Stephen Villar-Fong Choy, PHARMD's NPI number?
Stephen Villar-Fong Choy, PHARMD's National Provider Identifier (NPI) is 1083492862, issued on Sep 21, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Villar-Fong Choy, PHARMD located?
The NPPES record lists a practice address at 31836 Alvarado Blvd, Union City, CA, 94587. Phone: (510) 489-3955. Providers update this record themselves, so call before visiting.
How can I verify Stephen Villar-Fong Choy, PHARMD's license?
NPPES lists California license number 88653, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Stephen Villar-Fong Choy, PHARMD prescribe under Medicare Part D?
In 2024, Stephen Villar-Fong Choy, PHARMD had 424 Medicare Part D claims for 318 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.