Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexander Romero, O.D.

Optometrist in Orange, CA · enumerated 2007 · practices at Alexander Romero O.D. & Ly Nguyen O.D.,Inc..

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

National Provider Identifier

1427249960

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexander Romero

Credential O.D.

Sex Male

Practice address 227 E Chapman Ave Ste C, Orange, CA, 92866

Phone (714) 538-6424

Enumeration date Aug 8, 2007

Last updated in NPPES Dec 12, 2012

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 13378 (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

What is the NPI number for Alexander Romero?

The National Provider Identifier (NPI) for Alexander Romero is 1427249960, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexander Romero practice?

The practice location on file with NPPES is in Orange, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Alexander Romero O.D. & Ly Nguyen O.D.,Inc. Health Service Clinic/Center · Orange, CA NPI 1932779741

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-12.