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

Dr. Derek M Parker, PSY.D.

Psychologist in Winfield, KS · enumerated 2009.

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

National Provider Identifier

1568690923

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Registry record

Entity type Individual (Type 1)

Name Dr. Derek M Parker

Credential PSY.D.

Sex Male

Practice address Winfield, KS, 67301

Phone (620) 331-1748

Fax (620) 417-0308

Enumeration date Jun 24, 2009

Last updated in NPPES Jul 10, 2026

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

Taxonomy & licenses

103TP0814X Psychoanalysis Psychologist Behavioral Health & Social Service Providers · License 2441 (KS) Secondary

103TP2701X Group Psychotherapy Psychologist Behavioral Health & Social Service Providers · License 2441 (KS) Secondary

103TF0200X Forensic Psychologist Behavioral Health & Social Service Providers Secondary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License 2441 (KS) Secondary

103TA0400X Addiction (Substance Use Disorder) Psychologist Behavioral Health & Social Service Providers · License 035 (KS) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 2981 (KS) Primary

103TH0004X Health Psychologist Behavioral Health & Social Service Providers Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 2441 (KS) Secondary

103TA0700X Adult Development & Aging Psychologist Behavioral Health & Social Service Providers · License 2441 (KS) Secondary

103TF0000X Family Psychologist Behavioral Health & Social Service Providers 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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Derek Parker?

Derek Parker is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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