Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Lily Thuy Nguyen, OD
Optometrist in Pleasanton, CA · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1518522747
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Registry record
Entity type Individual (Type 1)
Name Dr. Lily Thuy Nguyen
Credential OD
Sex Female
Practice address 6155 Stoneridge Dr Ste 100, Pleasanton, CA, 94588
Phone (925) 463-2150
Enumeration date May 2, 2019
Last updated in NPPES Dec 10, 2021
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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
Where does Lily Nguyen practice?
The practice location on file with NPPES is in Pleasanton, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Lily Nguyen?
The National Provider Identifier (NPI) for Lily Nguyen is 1518522747, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-10.