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Denis R. Westphal

Vascular Surgery Physician in Chico, CA · enumerated 2008 · authorized official Denis Westphal, Owner.

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

National Provider Identifier

1588841142

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Registry record

Entity type Organization (Type 2)
Legal business name Denis R. Westphal
Practice address 95 Declaration Dr, Suite 1, Chico, CA, 95973
Phone (530) 345-9455
Fax (530) 345-6628
Enumeration date Jan 25, 2008
Last updated in NPPES Apr 27, 2012

Taxonomy & classification

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License G50664 (CA) Secondary
2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License G50664 (CA) Primary

Authorized official

Name Denis Westphal
Title Owner
Phone (530) 345-9455

Other identifiers

Identifier Type State Issuer
00G506640 Medicaid CA -
G50664 Other CA STATE LICENSE

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 Denis R. Westphal?
Denis R. Westphal is registered in NPPES as a Vascular Surgery Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-27.