Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Catherine Thanh Tran, O.D.

Low Vision Rehabilitation Optometrist in Long Beach, CA · enumerated 2015.

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

National Provider Identifier

1790165793

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Registry record

Entity type Individual (Type 1)

Name Dr. Catherine Thanh Tran

Credential O.D.

Sex Female

Practice address 5901 E 7th St, Long Beach, CA, 90822

Phone (562) 826-8000

Enumeration date Jun 4, 2015

Last updated in NPPES Jul 28, 2016

Taxonomy & licenses

152WL0500X Low Vision Rehabilitation Optometrist Eye and Vision Services Providers · License OPT15448-TLG (CA) Primary

152WL0500X Low Vision Rehabilitation Optometrist Eye and Vision Services Providers · License OEG003111 (PA) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1790165793 active?

Yes, as of the latest NPPES snapshot, NPI 1790165793 is active (record last updated 2016-07-28).

How do I verify Catherine Tran's NPI record?

Cross-check NPI 1790165793 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-28.