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DR. LEROY FELIX OWYANG DDS
NPI 1780694018
Dentist - General Practice in Fremont, CA

Active since August 09, 2006
43195 MISSION BLVD, SUITE B-3, FREMONT, CA 94539(510) 651-0833(510) 651-0845 Get Directions Write a Review

NPPES record last updated: March 12, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 12, 2026, Nov 24, 2021 (2 updates tracked since 2021).

About Dr. Leroy Felix Owyang Dds NPPES

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

DR. LEROY FELIX OWYANG DDS (NPI 1780694018) is an individual general practice provider in Fremont, California, licensed in California (52906) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1780694018
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. LEROY FELIX OWYANGCredential: DDS
Location Address43195 MISSION BLVD, SUITE B-3Fremont, CA 94539
Mailing Address43195 Mission Blvd Ste B3Fremont, CA 94539-5340 · (510) 651-0833 · Fax (510) 296-5714
Phone(510) 651-0833
Fax(510) 651-0845
Sole ProprietorYes
Enumeration DateAugust 9, 2006
Last NPPES UpdateMarch 12, 20262 updates tracked since enumeration
NPPES CertifiedMarch 12, 2026
✔ NPI 1780694018 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 · 52906
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.
43195 MISSION BLVD, Fremont, CA 94539
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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.

HUI-LIN CHIANG
Acupuncturist
43195 MISSION BLVD, SUITE B5
FREMONT, CA 94539
Alameda County (408) 466-7764
DR. JONATHAN SIDNEY WEISMAN DDS
Dentist (General Practice)
43195 MISSION BLVD, B4
FREMONT, CA 94539
Alameda County (510) 651-8479

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 Leroy Owyang's NPI number?

The NPI number for Leroy Owyang is 1780694018. It was assigned to this individual provider in the NPPES registry on August 9, 2006.

Where is Leroy Owyang located?

Leroy Owyang practices at 43195 Mission Blvd Suite B-3, Fremont, CA 94539. The listed phone number is (510) 651-0833.

What is Leroy Owyang'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 Leroy Owyang was last updated on March 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.