Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jiayann Tina Hsieh
Pharmacist in Hayward, CA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669893459
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Registry record
Entity type Individual (Type 1)
Name Jiayann Tina Hsieh
Sex Female
Practice address 28505 Hesperian Blvd, Hayward, CA, 94545
Phone (510) 921-3135
Fax (510) 921-3132
Enumeration date Dec 20, 2013
Last updated in NPPES Dec 20, 2013
Taxonomy & licenses
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Jiayann Hsieh practice?
The practice location on file with NPPES is in Hayward, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jiayann Hsieh?
The National Provider Identifier (NPI) for Jiayann Hsieh is 1669893459, a Type 1 (individual) record in the CMS NPPES registry.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-20.