DR. LEON H. CHANG D.D.S.
NPI 1982868949
Dentist - General Practice in Union City, CA

Q: What is Leon Chang's NPI number?

The NPI number for Leon Chang is 1982868949. It was assigned to this individual provider in the NPPES registry on July 17, 2008.

Q: What is Leon Chang's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Leon Chang was last updated on July 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since July 17, 2008

33800 ALVARADO NILES RD, SUITE 6, UNION CITY, CA 94587(510) 489-4660 Get Directions Write a Review

NPPES record last updated: July 17, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. Leon H. Chang D.d.s. NPPES

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

DR. LEON H. CHANG D.D.S. (NPI 1982868949) is an individual general practice provider in Union City, California, licensed in California (46764) and active in the NPI registry since July 2008.

NPPES Registry Identity

NPI1982868949

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. LEON H. CHANGCredential: D.D.S.

Location Address33800 ALVARADO NILES RD, SUITE 6Union City, CA 94587-4359

Mailing Address33800 Alvarado Niles Rd, Suite 6Union City, CA 94587-4359 · (510) 489-4660

Phone(510) 489-4660

Sole ProprietorNo

Enumeration DateJuly 17, 2008

✔ NPI 1982868949 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 · 46764

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.

33800 ALVARADO NILES RD, Union City, CA 94587

Open in Google Maps ↗

Other Providers at the Same Location NPPES 2

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

DR. CESAR ENRIQUE SIU O.D.

Optometrist

33800 ALVARADO NILES RD, 3
UNION CITY, CA 94587

Alameda County (510) 487-5856

LEONARD S. CHONG, D.D.S., INC.

Dentist (Orthodontics and Dentofacial Orthopedics)

33800 ALVARADO NILES RD, SUITE 1
UNION CITY, CA 94587

Alameda County (510) 489-5671

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 Leon Chang's NPI number?

The NPI number for Leon Chang is 1982868949. It was assigned to this individual provider in the NPPES registry on July 17, 2008.

Where is Leon Chang located?

Leon Chang practices at 33800 Alvarado Niles Rd Suite 6, Union City, CA 94587. The listed phone number is (510) 489-4660.

What is Leon Chang'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 Leon Chang was last updated on July 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.