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Tsai, Hsiao & Loo Dental Corporation

Dentist in Riverside, CA · enumerated 2007 · authorized official Maria Williamson, Supervisor.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1194841999

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Registry record

Entity type Organization (Type 2)
Legal business name Tsai, Hsiao & Loo Dental Corporation
Other name <Unavail>
Practice address 4024 12th St., Riverside, CA, 92501
Phone (951) 784-0636
Fax (951) 784-0675
Enumeration date Mar 22, 2007
Last updated in NPPES Nov 24, 2009

Taxonomy & classification

122300000X Dentist Dental Providers Secondary
122300000X Dentist Dental Providers · License 48503 (CA) Secondary
122300000X Dentist Dental Providers · License 41564 (CA) Primary

Authorized official

Name Maria Williamson
Title Supervisor
Phone (562) 424-6200

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for Tsai, Hsiao & Loo Dental Corporation?
NPPES lists Maria Williamson (Supervisor) as the authorized official for this organization.
What is the NPI number for Tsai, Hsiao & Loo Dental Corporation?
The NPI for Tsai, Hsiao & Loo Dental Corporation is 1194841999, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-24.