Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nancy Luu
Optometrist in Hayward, CA · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1841586849
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Registry record
Entity type Individual (Type 1)
Name Nancy Luu
Sex Female
Practice address 865 B St, Hayward, CA, 94541
Phone (510) 733-3105
Enumeration date Jun 28, 2011
Last updated in NPPES Jun 28, 2011
Taxonomy & licenses
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 Nancy Luu practice?
The practice location on file with NPPES is in Hayward, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Nancy Luu?
The National Provider Identifier (NPI) for Nancy Luu is 1841586849, 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 2011-06-28.