Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jonathan Tam, PHARMD
Pharmacist in Pleasanton, CA · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639455025
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Registry record
Entity type Individual (Type 1)
Name Jonathan Tam
Credential PHARMD
Sex Male
Practice address 11555 Dublin Canyon Rd, Pleasanton, CA, 94588
Phone (877) 723-3929
Enumeration date Oct 29, 2011
Last updated in NPPES Oct 29, 2011
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
Is NPI 1639455025 active?
Yes, as of the latest NPPES snapshot, NPI 1639455025 is active (record last updated 2011-10-29).
How do I verify Jonathan Tam's NPI record?
Cross-check NPI 1639455025 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-29.