Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Derek Yee-Hsiang Char, PSY.D.

Clinical Neuropsychologist in Pomona, CA · enumerated 2024.

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

National Provider Identifier

1235954652

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Registry record

Entity type Individual (Type 1)

Name Dr. Derek Yee-Hsiang Char

Credential PSY.D.

Sex Male

Practice address 255 E Bonita Ave Ofc 1420, Pomona, CA, 91767

Phone (909) 596-7733

Enumeration date Nov 20, 2024

Last updated in NPPES Dec 3, 2025

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY35392 (CA) Secondary

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License PSY35392 (CA) Primary

103TR0400X Rehabilitation Psychologist Behavioral Health & Social Service Providers · License PSY35392 (CA) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY35392 (CA) Secondary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Derek Char's NPI record?

Cross-check NPI 1235954652 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1235954652 active?

Yes, as of the latest NPPES snapshot, NPI 1235954652 is active (record last updated 2025-12-03).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-03.