Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Katherine Wu, PHD

Clinical Psychologist in Irvine, CA · enumerated 2020 · practices at Wu Psychological Services, Inc..

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

National Provider Identifier

1730791070

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Registry record

Entity type Individual (Type 1)

Name Katherine Wu

Credential PHD

Sex Female

Practice address Irvine, CA, 92614

Phone (949) 861-0907

Enumeration date Aug 18, 2020

Last updated in NPPES Feb 13, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PY61286126 (WA) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY33602 (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

How do I verify Katherine Wu's NPI record?

Cross-check NPI 1730791070 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1730791070 active?

Yes, as of the latest NPPES snapshot, NPI 1730791070 is active (record last updated 2023-02-13).

Other providers at this practice address

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Wu Psychological Services, Inc. Community/Behavioral Health Agency · Irvine, CA NPI 1841121837

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-13.