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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.

MATTHEW WI M.D.
NPI 1114371549
Surgery - Vascular Surgery in Fontana, CA

Active since April 22, 2016
9961 SIERRA AVE, FONTANA, CA 92335(909) 427-5626 Get Directions Write a Review

NPPES record last updated: August 20, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Matthew Wi M.d. NPPES

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

MATTHEW WI M.D. (NPI 1114371549) is an individual vascular surgery provider in Fontana, California, licensed in Florida (ME168903) and active in the NPI registry since April 2016.

NPPES Registry Identity

NPI1114371549
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameMATTHEW WICredential: M.D.
Location Address9961 SIERRA AVEFontana, CA 92335-6720
Mailing Address9961 Sierra AveFontana, CA 92335-6720 · (909) 427-5626
Phone(909) 427-5626
Sole ProprietorNo
Enumeration DateApril 22, 2016
Last NPPES UpdateAugust 20, 2026
NPPES CertifiedAugust 20, 2026
✔ NPI 1114371549 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License✔ Licensed in FL · ME168903
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
9961 SIERRA AVE, Fontana, CA 92335
Open in Google Maps ↗

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.

SHEILA ANN VANALLEN PT
Physical Therapist
9961 SIERRA AVE, BUILDING 3A
FONTANA, CA 92335
San Bernardino County (909) 427-7727
MR. JAMES DAVID KILLEEN III M.D.
Pediatrics
9961 SIERRA AVE, KAISER PERMANENTE FONTANA - PEDIATRICS
FONTANA, CA 92335
San Bernardino County (909) 427-6960
MR. DHIRESH N PATEL RPH
Pharmacist
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 302-8018
MS. STELLA MARIS CARLOS R.D.
Dietitian, Registered
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 472-7185
KADETTE KELLY CRNA
Nurse Anesthetist, Certified Registered
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
YAEL STEINFELD NP
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
SCOTT SWARTZ NP
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
ROBERT M. THEAL MD
Family Medicine
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910

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 Matthew Wi's NPI number?

The NPI number for Matthew Wi is 1114371549. It was assigned to this individual provider in the NPPES registry on April 22, 2016.

Where is Matthew Wi located?

Matthew Wi practices at 9961 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 427-5626.

What is Matthew Wi's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

When was this NPI record last updated?

The NPPES record for Matthew Wi was last updated on August 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.