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Timothy Yen, Psy.D., A Professional Psychology Corp

Clinical Psychologist in Walnut Creek, CA · enumerated 2025 · authorized official Timothy Yen, Owner/Ceo.

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

National Provider Identifier

1902772759

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Registry record

Entity type Organization (Type 2)
Legal business name Timothy Yen, Psy.D., A Professional Psychology Corp
Practice address 1460 Maria Ln Ste 310, Walnut Creek, CA, 94596
Phone (925) 385-8228
Enumeration date Oct 16, 2025
Last updated in NPPES Oct 16, 2025

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Primary
133V00000X Registered Dietitian Dietary & Nutritional Service Providers Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Timothy Yen
Title Owner/Ceo
Phone (714) 726-5051

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

Who is the authorized official for Timothy Yen, Psy.D., A Professional Psychology Corp?
NPPES lists Timothy Yen (Owner/Ceo) as the authorized official for this organization.
What is the NPI number for Timothy Yen, Psy.D., A Professional Psychology Corp?
The NPI for Timothy Yen, Psy.D., A Professional Psychology Corp is 1902772759, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-16.