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Tlc Allergy and Asthma Associates Inc

Allergy & Immunology Physician in Tustin, CA · enumerated 2006 · authorized official Otto Liao, Ceo.

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

National Provider Identifier

1003820770

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Registry record

Entity type Organization (Type 2)
Legal business name Tlc Allergy and Asthma Associates Inc
Practice address 1076 E 1st St Ste B, Tustin, CA, 92780
Phone (714) 838-2617
Enumeration date Jul 28, 2006
Last updated in NPPES Oct 6, 2020

Taxonomy & classification

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License A068959 (CA) Primary

Authorized official

Name Otto Liao
Title Ceo
Phone (714) 838-2617

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

Where is Tlc Allergy and Asthma Associates Inc located?
The practice location on file with NPPES is in Tustin, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-10-06. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-06.