NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Helene Leang, O.D.

Optometrist in Tustin, CA · enumerated 2007.

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

National Provider Identifier

1730220989

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Registry record

Entity type Individual (Type 1)
Name Dr. Helene Leang
Credential O.D.
Sex Female
Practice address Tustin, CA, 92780
Fax (714) 730-1388
Enumeration date Feb 9, 2007
Last updated in NPPES Jan 11, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 11283T (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
50392 Other CA DAVIS VISION
25564 Other CA SPECTERA
26915 Other CA AVESIS
CA1283 Other CA EYEMED VISION CARE
1441 Other CA SUPERIOR VISION SERVICES
3688 Other CA VISION SERVICE PLAN
SDO112830 Medicaid CA -
927503 Other CA VISION INS PLAN OF AMER

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

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.
What specialty is Helene Leang?
Helene Leang 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-11.