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DR. JOSEPH NGUYEN MD
NPI 1225217425
Internal Medicine - Allergy & Immunology in Orange, CA

Active since October 24, 2007
101 THE CITY DR S, ORANGE, CA 92868(714) 456-5691 Get Directions Write a Review

NPPES record last updated: April 6, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 6, 2021, Jan 12, 2021 (2 updates tracked since 2021).

About Dr. Joseph Nguyen Md NPPES

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

DR. JOSEPH NGUYEN MD (NPI 1225217425) is an individual allergy & immunology provider in Orange, California, licensed in California (A91271) and active in the NPI registry since October 2007. He maintains 2 additional practice locations.

NPPES Registry Identity

NPI1225217425
Entity TypeIndividualMale
Primary Taxonomy207RA0201X
Provider Legal NameDR. JOSEPH NGUYENCredential: MD
Location Address101 THE CITY DR SOrange, CA 92868-3201
Mailing Address1714 N Bush StSanta Ana, CA 92706-2812 · (562) 396-4325
Phone(714) 456-5691
Sole ProprietorYes
Enumeration DateOctober 24, 2007
Last NPPES UpdateApril 6, 20212 updates tracked since enumeration
NPPES CertifiedApril 6, 2021
✔ NPI 1225217425 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Allergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207RA0201X
License✔ Licensed in CA · A91271
Definition
An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.
Also ListedAllergy & ImmunologyTaxonomy 207K00000X · License A92171 (CA)
Also ListedInternal MedicineTaxonomy 207R00000X · License A91271 (CA)
101 THE CITY DR S, Orange, CA 92868
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Secondary Practice Locations 2

Location 14332 Katella AveLos Alamitos, CA 90720-3564 · Phone (562) 369-4325
Location 210300 Compton AveLos Angeles, CA 90002-3628 · Phone (323) 564-4331

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.

DR. ANKIT BHUPENDRA PATEL D.O.
Radiology (Diagnostic Radiology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-5113
DR. LAURA CATHERINE SKOCZYLAS MD
Obstetrics & Gynecology
101 THE CITY DR S, BUILDING 56, DEPARTMENT OF OB/GYN
ORANGE, CA 92868
Orange County (714) 456-8224
MICHAEL CHENG DO
Internal Medicine (Rheumatology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7110
AESTHETIC AND PLASTIC SURGERY INSTITUTE
Plastic Surgery
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-2986
JOSEPH VILLARREAL M.D.
Emergency Medicine
101 THE CITY DR S, BUILDING 1A, ROOM 1009
ORANGE, CA 92868
Orange County (714) 456-5239
DEMI TRAN
Psychiatry & Neurology (Neurology)
101 THE CITY DR S, CITY TOWER, SUITE 400
ORANGE, CA 92868
Orange County (171) 456-6693
DR. ISABEL CARLTON CLARK M.D.
Surgery (Trauma Surgery)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7890
DYLAN LUKATO
Emergency Medicine
101 THE CITY DR S
ORANGE, CA 92868
Orange County (415) 218-8041

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 Joseph Nguyen's NPI number?

The NPI number for Joseph Nguyen is 1225217425. It was assigned to this individual provider in the NPPES registry on October 24, 2007.

Where is Joseph Nguyen located?

Joseph Nguyen practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-5691.

What is Joseph Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Allergy & Immunology, with taxonomy code 207RA0201X.

When was this NPI record last updated?

The NPPES record for Joseph Nguyen was last updated on April 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.