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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIA NGUYEN DO
NPI 1053113548
Pediatrics in Orange, CA

Active since March 25, 2025
505 S MAIN ST STE 525, ORANGE, CA 92868(714) 509-8547 Get Directions Write a Review

NPPES record last updated: August 3, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 3, 2026, Mar 25, 2025 (2 updates tracked since 2025).

About Maria Nguyen Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIA NGUYEN DO (NPI 1053113548) is an individual pediatrics provider in Orange, California, licensed in California (20A25836) and active in the NPI registry since March 2025.

NPPES Registry Identity

NPI1053113548
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMARIA NGUYENCredential: DO
Location Address505 S MAIN ST STE 525Orange, CA 92868-4553
Mailing Address505 S Main St Ste 525Orange, CA 92868-4553 · (714) 509-8547
Phone(714) 509-8547
Sole ProprietorNo
Enumeration DateMarch 25, 2025
Last NPPES UpdateAugust 3, 20262 updates tracked since enumeration
NPPES CertifiedAugust 3, 2026
✔ NPI 1053113548 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · 20A25836
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
505 S MAIN ST STE 525, Orange, CA 92868
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LINDSEY LILL
Student in an Organized Health Care Education/Training Program
505 S MAIN ST STE 525
ORANGE, CA 92868
Orange County (714) 509-8547
ESTHER CHANG
Student in an Organized Health Care Education/Training Program
505 S MAIN ST STE 525
ORANGE, CA 92868
Orange County (925) 785-6878
LUKE YU MD
Student in an Organized Health Care Education/Training Program
505 S MAIN ST STE 525
ORANGE, CA 92868
Orange County (714) 456-5631
CHARISSA LAU
Student in an Organized Health Care Education/Training Program
505 S MAIN ST STE 525
ORANGE, CA 92868
Orange County (714) 509-8547
REGINA TANG
Student in an Organized Health Care Education/Training Program
505 S MAIN ST STE 525
ORANGE, CA 92868
Orange County (714) 509-8547
DEAN TODD MD
Pediatrics
505 S MAIN ST STE 525
ORANGE, CA 92868
Orange County (714) 456-5631
KATHERINE ALOYSIUS KILLMOND
Pediatrics
505 S MAIN ST STE 525
ORANGE, CA 92868
Orange County (714) 456-5631
JAIMEE KATO MD
Student in an Organized Health Care Education/Training Program
505 S MAIN ST STE 525
ORANGE, CA 92868
Orange County (714) 509-8547

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maria Nguyen's NPI number?

The NPI number for Maria Nguyen is 1053113548. It was assigned to this individual provider in the NPPES registry on March 25, 2025.

Where is Maria Nguyen located?

Maria Nguyen practices at 505 S Main St Ste 525, Orange, CA 92868. The listed phone number is (714) 509-8547.

What is Maria Nguyen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for Maria Nguyen was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.