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Dr. Tammy Liu Na, O.D.

Optometrist in Irvine, CA · enumerated 2019 · practices at Third Optometric Care of California PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1346801933

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Registry record

Entity type Individual (Type 1)
Name Dr. Tammy Liu Na
Credential O.D.
Sex Female
Practice address 15333 Culver Dr Ste 690, Irvine, CA, 92604
Phone (949) 552-4271
Enumeration date Jun 24, 2019
Last updated in NPPES Jul 27, 2026

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 34240TLG (CA) Primary
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.

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Frequently asked questions

Where does Tammy Liu Na practice?
The practice location on file with NPPES is in Irvine, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Tammy Liu Na?
The National Provider Identifier (NPI) for Tammy Liu Na is 1346801933, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-27.