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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

TRUONG SON HUU NGUYEN, D.O., INC.
NPI 1710805593
Family Medicine in Walnut, CA

Active since July 08, 2026
20929 DIVONNE DR, WALNUT, CA 91789(909) 566-2166 Get Directions Write a Review

NPPES record added: July 8, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Truong Son Huu Nguyen, D.o., Inc. NPPES

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

TRUONG SON HUU NGUYEN, D.O., INC. (NPI 1710805593), doing business as Walnut Health Direct Primary Care Medical Clinic, is a healthcare organization registered as a family medicine in Walnut, California and active in the NPI registry since July 2026. The organization lists Truong Son Huu Nguyen, Ceo, as its authorized official.

NPPES Registry Identity

NPI1710805593
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameTRUONG SON HUU NGUYEN, D.O., INC.
Location Address20929 DIVONNE DRWalnut, CA 91789-2526
Mailing Address20929 Divonne DrWalnut, CA 91789-2526 · (909) 566-2166
Phone(909) 566-2166
Organization SubpartNo
Authorized OfficialTruong Son Huu NguyenCeo · (909) 566-2166
Enumeration DateJuly 8, 2026
NPPES CertifiedJuly 8, 2026
✔ NPI 1710805593 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
20929 DIVONNE DR, Walnut, CA 91789
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Other Names 1

Doing Business AsWalnut Health Direct Primary Care Medical Clinic

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES

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

CONCEPCION DE GUZMAN NP
Nurse Practitioner (Family)
20929 DIVONNE DR
WALNUT, CA 91789
Los Angeles County (909) 576-7940

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 Truong Son Huu Nguyen, D.O., Inc.'s NPI number?

The NPI number for Truong Son Huu Nguyen, D.O., Inc. is 1710805593. It was assigned to this organization in the NPPES registry on July 8, 2026. The provider is doing business as Walnut Health Direct Primary Care Medical Clinic.

Where is Truong Son Huu Nguyen, D.O., Inc. located?

Truong Son Huu Nguyen, D.O., Inc. is located at 20929 Divonne Dr, Walnut, CA 91789. The listed phone number is (909) 566-2166.

What is Truong Son Huu Nguyen, D.O., Inc.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for Truong Son Huu Nguyen, D.O., Inc. was last updated on July 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 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.