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Chaparral Medical Group Inc.

Cardiovascular Disease Physician in Upland, CA · enumerated 2012 · authorized official Adrienne Walker, Contracts Manager.

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

National Provider Identifier

1831442078

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Registry record

Entity type Organization (Type 2)
Legal business name Chaparral Medical Group Inc.
Practice address 591 N 13th Ave, Suite 3, Upland, CA, 91786
Phone (909) 985-5885
Fax (909) 920-3379
Enumeration date Oct 25, 2012
Last updated in NPPES Oct 25, 2012

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Adrienne Walker
Title Contracts Manager
Phone (909) 398-1500

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 Chaparral Medical Group Inc.?
The NPI for Chaparral Medical Group Inc. is 1831442078, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Chaparral Medical Group Inc.?
NPPES lists Adrienne Walker (Contracts Manager) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-25.