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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ivan Young Tsai, O.D.

Optometrist in Huntington Beach, CA · enumerated 2006 · practices at Huntington Beach Optometry, Apc.

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

National Provider Identifier

1427023068

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Registry record

Entity type Individual (Type 1)
Name Dr. Ivan Young Tsai
Credential O.D.
Sex Male
Practice address 5890 Edinger Ave, Huntington Beach, CA, 92649
Phone (714) 840-2020
Fax (714) 840-2025
Enumeration date Feb 17, 2006
Last updated in NPPES Feb 19, 2014

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 11335T (CA) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier Type State Issuer
Y16365 Other CA MEDICARE GROUP UPIN
SD11335T0 Other CA BLUE SHIELD PROVIDER PIN
W17925 Other CA MEDICARE GROUP PIN

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

What specialty is Ivan Tsai?
Ivan Tsai is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-19.