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GARY H. WONG MD
NPI 1255424297
Internal Medicine in Fontana, CA

Active since October 02, 2006
9961 SIERRA AVE, FONTANA, CA 92335(909) 427-3910 Get Directions Write a Review

NPPES record last updated: December 3, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Gary H. Wong Md NPPES

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

GARY H. WONG MD (NPI 1255424297) is an individual internal medicine provider in Fontana, California, licensed in California (G58745) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1255424297
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGARY H. WONGCredential: MD
Location Address9961 SIERRA AVEFontana, CA 92335-6720
Mailing Address9961 Sierra AveFontana, CA 92335-6720 · (909) 427-3910
Phone(909) 427-3910
Sole ProprietorNo
Enumeration DateOctober 2, 2006
Last NPPES UpdateDecember 3, 2021
✔ NPI 1255424297 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 · G58745
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.
9961 SIERRA AVE, Fontana, CA 92335
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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.

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 Gary Wong's NPI number?

The NPI number for Gary Wong is 1255424297. It was assigned to this individual provider in the NPPES registry on October 2, 2006.

Where is Gary Wong located?

Gary Wong practices at 9961 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 427-3910.

What is Gary Wong'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 Gary Wong was last updated on December 3, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.