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Brian B. Lo, MD Inc.

Internal Medicine Physician in Irvine, CA · enumerated 2006 · authorized official Kristie Lo, Coo/Practice Manager.

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

National Provider Identifier

1558387340

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Registry record

Entity type Organization (Type 2)
Legal business name Brian B. Lo, MD Inc.
Practice address 7545 Irvine Center Dr Ste 200, Irvine, CA, 92618
Phone (949) 503-5112
Fax (949) 503-5113
Enumeration date Jul 14, 2006
Last updated in NPPES Mar 31, 2025

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A68666 (CA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Kristie Lo
Title Coo/Practice Manager
Phone (949) 503-5112

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

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Brian B. Lo, MD Inc.?
Brian B. Lo, MD Inc. is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-31.