NPI Portal NPI Lookup & Verification

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

Katherine Tuong Oanh Tran, OD

Optometrist in Dallas, TX · enumerated 2025 · practices at University of Houston System.

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

National Provider Identifier

1912899618

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Registry record

Entity type Individual (Type 1)
Name Katherine Tuong Oanh Tran
Credential OD
Sex Female
Practice address Dallas, TX, 75219
Phone (214) 528-7354
Fax (214) 528-7387
Enumeration date Jul 17, 2025
Last updated in NPPES Jul 31, 2025

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 11438 (TX) 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
11438 Other TX STATE LICENSE

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Katherine Tran?
The National Provider Identifier (NPI) for Katherine Tran is 1912899618, a Type 1 (individual) record in the CMS NPPES registry.
Where does Katherine Tran practice?
The practice location on file with NPPES is in Dallas, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-31.