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Vista Del Mar Medical Group, Inc

Nephrology Physician in Oxnard, CA · enumerated 2006 · authorized official Richard Westerdoll, Executive Director.

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

National Provider Identifier

1942239694

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Registry record

Entity type Organization (Type 2)
Legal business name Vista Del Mar Medical Group, Inc
Other name <Unavail>
Practice address 1200 W Gonzales Rd, Suite 300, Oxnard, CA, 93036
Phone (805) 983-0691
Fax (805) 981-1643
Enumeration date Jul 2, 2006
Last updated in NPPES Nov 12, 2021

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License FNP4189 (CA) Secondary
207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License FNP4189 (CA) Primary

Authorized official

Name Richard Westerdoll
Title Executive Director
Phone (805) 983-0691

Other identifiers

Identifier Type State Issuer
110039977 Other CA MEDICARE RAILROAD
ZZZ75566Z Medicaid CA -
ZZZ34679Z Other CA BLUE CROSS

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 Vista Del Mar Medical Group, Inc?
Vista Del Mar Medical Group, Inc is registered in NPPES as a Nephrology Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-12.