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IRVIN XU MD
NPI 1275235483
Internal Medicine in San Diego, CA

Active since March 21, 2023
200 W ARBOR DR # MC8425, SAN DIEGO, CA 92103(619) 543-6268 Get Directions Write a Review

NPPES record last updated: February 26, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Irvin Xu Md NPPES

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

IRVIN XU MD (NPI 1275235483) is an individual internal medicine provider in San Diego, California, licensed in California (206521) and active in the NPI registry since March 2023. He maintains a secondary practice location in Los Angeles.

NPPES Registry Identity

NPI1275235483
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameIRVIN XUCredential: MD
Location Address200 W ARBOR DR # MC8425San Diego, CA 92103-1911
Mailing Address4733 W Sunset Blvd Fl 3Los Angeles, CA 90027-6093 · (619) 543-6268
Phone(619) 543-6268
Sole ProprietorNo
Enumeration DateMarch 21, 2023
Last NPPES UpdateFebruary 26, 2026
NPPES CertifiedFebruary 26, 2026
✔ NPI 1275235483 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · 206521
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

200 W ARBOR DR # MC8425, San Diego, CA 92103
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Secondary Practice Location 1

Location 14733 W Sunset Blvd Fl 3Los Angeles, CA 90027-6093 · Phone (833) 574-2273

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.

WILLIAM BERTEL FLEMING
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR # MC8425
SAN DIEGO, CA 92103
San Diego County (619) 543-6268
ANNIKA ALEXANDRA BERGSTROM MD
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR # MC8425
SAN DIEGO, CA 92103
San Diego County (619) 543-6268
ALISSE SINGER
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR # MC8425
SAN DIEGO, CA 92103
San Diego County (619) 543-6268
ELENA SOJOURNER HEIDE
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR # MC8425
SAN DIEGO, CA 92103
San Diego County (619) 543-6268
MATTHEW CHAN
Internal Medicine
200 W ARBOR DR # MC8425
SAN DIEGO, CA 92103
San Diego County (619) 543-6268
CASSANDRA THANH
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR # MC8425
SAN DIEGO, CA 92103
San Diego County (619) 543-6268
REEM HALABI
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR # MC8425
SAN DIEGO, CA 92103
San Diego County (619) 543-6268
BRADEN ANDREW STANYER
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR # MC8425
SAN DIEGO, CA 92103
San Diego County (619) 471-0434

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 Irvin Xu's NPI number?

The NPI number for Irvin Xu is 1275235483. It was assigned to this individual provider in the NPPES registry on March 21, 2023.

Where is Irvin Xu located?

Irvin Xu practices at 200 W Arbor Dr # Mc8425, San Diego, CA 92103. The listed phone number is (619) 543-6268.

What is Irvin Xu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Irvin Xu was last updated on February 26, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.