Jiayann Tina Hsieh
Pharmacist · Hayward, CA
Jiayann Tina Hsieh is a pharmacist with a practice address in Hayward, California, and NPI 1669893459, issued on Dec 20, 2013. Check the license (California 40854, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jiayann Tina Hsieh
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 40854 CA
Self-reported in NPPES; status is on the state search - Practice location
- 28505 Hesperian Blvd, Hayward, CA 94545
- Phone
- (510) 921-3135
- Enumerated
- Dec 20, 2013
- Record last updated
- Dec 20, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (510) 921-3132
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 28505 Hesperian Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jiayann Tina Hsieh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 40854Check 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, 100% of the cost of the top drugs
54 Medicare Part D claims for 49 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.
- Abrysvo27 claims
- Shingrix19 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.
Jiayann Tina Hsieh among 32,533 pharmacist records in California
Jiayann Tina Hsieh 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 2013, is newer than 32% of them.
- NPI issued2013 · 32% of these records are older, 65% 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 updated2013 · 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).
150 pharmacist records list a practice address in Hayward
They are 150 of the 3,993 NPPES records with a practice address in Hayward, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Hayward → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- James Bateman, R.PH.Hayward, CA 945451205913787
- Lynn Frances Deguzman, PHARM.D.Hayward, CA 945451972603009
- Carmencita Deguzman, RPHHayward, CA 945451144385097
- Jenny Hong, RPHHayward, CA 945451700955747
- Nupur JainHayward, CA 945451679638175
- Mani Kammula, PHARMDHayward, CA 945451033273347
- Ling Kao, PHARM.D.Hayward, CA 945451679653026
- Christine Law, PHARMDHayward, CA 945451790858132
Common questions
What is Jiayann Tina Hsieh's NPI number?
Jiayann Tina Hsieh's National Provider Identifier (NPI) is 1669893459, issued on Dec 20, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Jiayann Tina Hsieh located?
The NPPES record lists a practice address at 28505 Hesperian Blvd, Hayward, CA, 94545. Phone: (510) 921-3135. Providers update this record themselves, so call before visiting.
How can I verify Jiayann Tina Hsieh's license?
NPPES lists California license number 40854, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jiayann Tina Hsieh prescribe under Medicare Part D?
In 2024, Jiayann Tina Hsieh had 54 Medicare Part D claims for 49 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.