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

Dr. Chia-Wen Hsieh, PSY.D.

Clinical Psychologist in Rosemead, CA · enumerated 2006.

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

National Provider Identifier

1982795589

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Registry record

Entity type Individual (Type 1)

Name Dr. Chia-Wen Hsieh

Credential PSY.D.

Sex Female

Practice address Rosemead, CA, 91770

Phone (626) 287-2988

Enumeration date Sep 27, 2006

Last updated in NPPES Dec 21, 2021

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 PSY # 21314 (CA) Primary

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.

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Frequently asked questions

Is NPI 1982795589 active?

Yes, as of the latest NPPES snapshot, NPI 1982795589 is active (record last updated 2021-12-21).

How do I verify Chia-Wen Hsieh's NPI record?

Cross-check NPI 1982795589 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Shihgee Lin Marriage & Family Therapist · Rosemead, CA NPI 1235452376

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-21.