NPI Portal NPI Lookup & Verification

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

Dr. Katy Arleen Herr, PSY.D

Clinical Psychologist in Longview, WA · enumerated 2007 · practices at Sunshine Psychological Services.

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

National Provider Identifier

1356535199

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Registry record

Entity type Individual (Type 1)
Name Dr. Katy Arleen Herr
Credential PSY.D
Sex Female
Practice address Longview, WA, 98632
Phone (401) 375-2835
Fax (844) 795-7470
Enumeration date Sep 5, 2007
Last updated in NPPES Sep 22, 2016

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 PY60419588 (WA) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier Type State Issuer
603-576-934 Other WA KATE HERR, CLINICAL PSYCHOLOGIST, LLC

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 1356535199 active?
Yes, as of the latest NPPES snapshot, NPI 1356535199 is active (record last updated 2016-09-22).
How do I verify Katy Herr's NPI record?
Cross-check NPI 1356535199 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-22.