1. Home
  2. Directory
  3. California
  4. Ontario
  5. Dentist
  6. NPI Profile

NICHOLAS TRIEU DDS INC
NPI 1639040348
Dentist - General Practice in Ontario, CA

Active since September 16, 2025
1755 S MOUNTAIN AVE STE A, ONTARIO, CA 91762(909) 317-8486 Get Directions Write a Review

NPPES record last updated: September 16, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Nicholas Trieu Dds Inc NPPES

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

NICHOLAS TRIEU DDS INC (NPI 1639040348) is a healthcare organization registered as a general practice in Ontario, California and active in the NPI registry since September 2025. The organization lists Nicholas Vince Ramas Trieu, Dentist, as its authorized official.

NPPES Registry Identity

NPI1639040348
Entity TypeOrganization
Primary Taxonomy1223G0001X
Legal Business NameNICHOLAS TRIEU DDS INC
Location Address1755 S MOUNTAIN AVE STE AOntario, CA 91762-5972
Mailing Address6303 Sloane CtRancho Cucamonga, CA 91739-2255
Phone(909) 317-8486
Organization SubpartNo
Authorized OfficialNicholas Vince Ramas TrieuDentist · (909) 317-8486
Enumeration DateSeptember 16, 2025
NPPES CertifiedSeptember 15, 2025
✔ NPI 1639040348 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
1755 S MOUNTAIN AVE STE A, Ontario, CA 91762
Open in Google Maps ↗

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

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 Nicholas Trieu Dds Inc's NPI number?

The NPI number for Nicholas Trieu Dds Inc is 1639040348. It was assigned to this organization in the NPPES registry on September 16, 2025.

Where is Nicholas Trieu Dds Inc located?

Nicholas Trieu Dds Inc is located at 1755 S Mountain Ave Ste A, Ontario, CA 91762. The listed phone number is (909) 317-8486.

What is Nicholas Trieu Dds Inc's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for Nicholas Trieu Dds Inc was last updated on September 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.