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Oc Psychological Counseling, P.C.

Clinical Psychologist in Fountain Valley, CA · enumerated 2016 · authorized official Tonja Duvardo, President.

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

National Provider Identifier

1578916847

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Registry record

Entity type Organization (Type 2)
Legal business name Oc Psychological Counseling, P.C.
Practice address 18430 Brookhurst St, Suite 202h, Fountain Valley, CA, 92708
Phone (714) 271-9236
Enumeration date Jul 21, 2016
Last updated in NPPES Jul 21, 2016

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY15770 (CA) Primary

Authorized official

Name Tonja Duvardo
Title President
Phone (714) 271-9236

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 type of organization is Oc Psychological Counseling, P.C.?
Oc Psychological Counseling, P.C. is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-21.