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

DR. WILLIAM DUY-DAT TON-THAT DDS
NPI 1821917196
Dentist - General Practice in San Diego, CA

Q: What is William Ton-that's NPI number?

The NPI number for William Ton-that is 1821917196. It was assigned to this individual provider in the NPPES registry on July 13, 2026.

Q: What is William Ton-that'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 William Ton-that was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since July 13, 2026

4025 TRIPOLI AVE FL 2, SAN DIEGO, CA 92140(161) 952-4400 Get Directions Write a Review

NPPES record added: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

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About Dr. William Duy-dat Ton-that Dds NPPES

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

DR. WILLIAM DUY-DAT TON-THAT DDS (NPI 1821917196) is an individual general practice provider in San Diego, California, licensed in Oklahoma (8223) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1821917196

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. WILLIAM DUY-DAT TON-THATCredential: DDS

Location Address4025 TRIPOLI AVE FL 2San Diego, CA 92140-5290

Mailing Address12908 Lorien WayOklahoma City, OK 73170-0404

Phone(161) 952-4400

Sole ProprietorYes

Enumeration DateJuly 13, 2026

NPPES CertifiedJuly 12, 2026

✔ NPI 1821917196 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in OK · 8223

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.

4025 TRIPOLI AVE FL 2, San Diego, CA 92140

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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 William Ton-that's NPI number?

The NPI number for William Ton-that is 1821917196. It was assigned to this individual provider in the NPPES registry on July 13, 2026.

Where is William Ton-that located?

William Ton-that practices at 4025 Tripoli Ave Fl 2, San Diego, CA 92140. The listed phone number is (161) 952-4400.

What is William Ton-that'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 William Ton-that was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.