Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Siyun Song, PHARMD
Pharmacist in Vacaville, CA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1205550464
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Registry record
Entity type Individual (Type 1)
Name Siyun Song
Credential PHARMD
Sex Female
Practice address 1501 Helen Power Dr, Vacaville, CA, 95687
Phone (707) 451-1396
Enumeration date Sep 30, 2022
Last updated in NPPES Sep 30, 2022
Taxonomy & licenses
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy.
About the PHARMD credential
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
What specialty is Siyun Song?
Siyun Song is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-30.