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Dennis S Liu MD Inc

Internal Medicine Physician in Arcadia, CA · enumerated 2006 · authorized official Dennis Liu, Owner.

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

National Provider Identifier

1164518072

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Registry record

Entity type Organization (Type 2)
Legal business name Dennis S Liu MD Inc
Practice address 624 W Duarte Rd, Suite 105, Arcadia, CA, 91007
Phone (626) 446-4727
Fax (626) 446-5663
Enumeration date Oct 5, 2006
Last updated in NPPES Mar 20, 2015

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A72151 (CA) Primary

Authorized official

Name Dennis Liu
Title Owner
Phone (626) 446-5663

Other identifiers

Identifier Type State Issuer
W17804 Other CA PTAN

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 the NPI number for Dennis S Liu MD Inc?
The NPI for Dennis S Liu MD Inc is 1164518072, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Dennis S Liu MD Inc?
NPPES lists Dennis Liu (Owner) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-20.