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Internal Medicine Medical Group

Family Medicine Physician in Pomona, CA · enumerated 2007 · authorized official Adrienne Walker, Contracts Manager.

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

National Provider Identifier

1225231525

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Registry record

Entity type Organization (Type 2)
Legal business name Internal Medicine Medical Group
Practice address 790 E Bonita Avenue, Internal Medicine Medical Group 2nd Floor, Pomona, CA, 91767
Phone (909) 447-8585
Fax (909) 447-8593
Enumeration date Jun 6, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Adrienne Walker
Title Contracts Manager
Phone (909) 398-1550

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 Internal Medicine Medical Group?
NPPES lists Adrienne Walker (Contracts Manager) as the authorized official for this organization.
What is the NPI number for Internal Medicine Medical Group?
The NPI for Internal Medicine Medical Group is 1225231525, 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 2020-08-22.