Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. TIMOTHY KA LOO
NPI 1831758119
Dentist - General Practice in San Francisco, CA

Q: What is Timothy Loo's NPI number?

The NPI number for Timothy Loo is 1831758119. It was assigned to this individual provider in the NPPES registry on June 10, 2019.

Q: What is Timothy Loo'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 Timothy Loo was last updated on October 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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 June 10, 2019

2145 19TH AVE STE 1, SAN FRANCISCO, CA 94116(415) 623-0233 Get Directions Write a Review

NPPES record last updated: October 30, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 30, 2026, Jun 10, 2019 (2 updates tracked since 2019).

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About Dr. Timothy Ka Loo NPPES

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

DR. TIMOTHY KA LOO (NPI 1831758119) is an individual general practice provider in San Francisco, California, licensed in California (106530) and active in the NPI registry since June 2019.

NPPES Registry Identity

NPI1831758119

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. TIMOTHY KA LOO

Location Address2145 19TH AVE STE 1San Francisco, CA 94116-1866

Mailing Address2145 19th Ave Ste 1San Francisco, CA 94116-1866 · (415) 623-0633

Phone(415) 623-0233

Sole ProprietorNo

Enumeration DateJune 10, 2019

Last NPPES UpdateOctober 30, 20262 updates tracked since enumeration

NPPES CertifiedOctober 30, 2026

✔ NPI 1831758119 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 · 106530

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.

2145 19TH AVE STE 1, San Francisco, CA 94116

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Other Providers at the Same Location NPPES

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

LOO FAMILY DENTISTRY, P.C.

Clinic/Center (Dental)

2145 19TH AVE STE 1
SAN FRANCISCO, CA 94116

San Francisco County (415) 566-1911

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 Timothy Loo's NPI number?

The NPI number for Timothy Loo is 1831758119. It was assigned to this individual provider in the NPPES registry on June 10, 2019.

Where is Timothy Loo located?

Timothy Loo practices at 2145 19th Ave Ste 1, San Francisco, CA 94116. The listed phone number is (415) 623-0233.

What is Timothy Loo'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 Timothy Loo was last updated on October 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.