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

DR. LE TIEN DUONG AU D.D.S.
NPI 1649587965
Dentist - General Practice in Ontario, CA

Active since September 08, 2010
1630 E 4TH ST, #M, ONTARIO, CA 91764(909) 984-7872 Get Directions Write a Review

NPPES record last updated: September 8, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Le Tien Duong Au D.d.s. NPPES

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

DR. LE TIEN DUONG AU D.D.S. (NPI 1649587965) is an individual general practice provider in Ontario, California, licensed in California (58959) and active in the NPI registry since September 2010.

NPPES Registry Identity

NPI1649587965
Entity TypeIndividualFemale
Primary Taxonomy1223G0001X
Provider Legal NameDR. LE TIEN DUONG AUCredential: D.D.S.
Location Address1630 E 4TH ST, #MOntario, CA 91764-2604
Mailing Address23634 Palomino DrDiamond Bar, CA 91765-1627 · (714) 548-0113
Phone(909) 984-7872
Sole ProprietorNo
Enumeration DateSeptember 8, 2010
✔ NPI 1649587965 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in CA · 58959
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.
1630 E 4TH ST, Ontario, CA 91764
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Humana.Insurance ›

Other Providers at the Same Location NPPES 3

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

YA-TING TSAI DMD
Dentist (General Practice)
1630 E 4TH ST, M
ONTARIO, CA 91764
San Bernardino County (909) 980-3914
MRS. SOPHIA SHU HUI FU DDS
Dentist
1630 E 4TH ST, STE M
ONTARIO, CA 91764
San Bernardino County (909) 984-7872
TERRY HUANG D.D.S. INC.
Dentist
1630 E 4TH ST, STE M
ONTARIO, CA 91764
San Bernardino County (909) 984-7872

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 Le Tien Au's NPI number?

The NPI number for Le Tien Au is 1649587965. It was assigned to this individual provider in the NPPES registry on September 8, 2010.

Where is Le Tien Au located?

Le Tien Au practices at 1630 E 4th St #m, Ontario, CA 91764. The listed phone number is (909) 984-7872.

What is Le Tien Au's specialty?

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

What insurance does Le Tien Au accept?

Health plans from Humana list Le Tien Au as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Le Tien Au was last updated on September 8, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.