Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joseph G Leong, MD
Surgery Physician in Pleasanton, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1114555349
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Registry record
Entity type Individual (Type 1)
Name Joseph G Leong
Credential MD
Sex Male
Practice address 5565 W Las Positas Blvd Ste 260, Pleasanton, CA, 94588
Phone (925) 534-0500
Enumeration date Apr 1, 2020
Last updated in NPPES Oct 6, 2026
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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 1114555349 active?
Yes, as of the latest NPPES snapshot, NPI 1114555349 is active (record last updated 2026-10-06).
How do I verify Joseph Leong's NPI record?
Cross-check NPI 1114555349 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 2026-10-06.