Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Cathy Vu, OD
Optometrist in San Mateo, CA · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720956477
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Registry record
Entity type Individual (Type 1)
Name Cathy Vu
Credential OD
Sex Female
Practice address 115 W 25th Ave, San Mateo, CA, 94403
Phone (650) 349-5733
Enumeration date Oct 24, 2025
Last updated in NPPES Oct 24, 2025
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 Cathy Vu practice?
The practice location on file with NPPES is in San Mateo, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Cathy Vu?
The National Provider Identifier (NPI) for Cathy Vu is 1720956477, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-24.