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Dr. Oscar A Donoso, PHD, LP

Clinical Psychologist in Orange, CA · enumerated 2009.

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

National Provider Identifier

1801025879

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Registry record

Entity type Individual (Type 1)
Name Dr. Oscar A Donoso
Credential PHD, LP
Sex Male
Practice address 701 S Parker St Ste 2800, Orange, CA, 92868
Phone (925) 282-1778
Enumeration date Jul 10, 2009
Last updated in NPPES Jul 14, 2025

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 24553 (CA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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

Where does Oscar Donoso practice?
The practice location on file with NPPES is in Orange, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Oscar Donoso?
The National Provider Identifier (NPI) for Oscar Donoso is 1801025879, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-14.