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

Leon Ashley Peek, PH.D.

Psychologist in Denton, TX · enumerated 2006.

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

National Provider Identifier

1255351177

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Registry record

Entity type Individual (Type 1)
Name Leon Ashley Peek
Credential PH.D.
Sex Male
Practice address Denton, TX, 76201
Phone (940) 382-1957
Fax (817) 769-2720
Enumeration date Jul 21, 2006
Last updated in NPPES Jul 20, 2015

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

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 2-1953 (TX) Secondary
103T00000X Psychologist Behavioral Health & Social Service Providers · License 2-1953 (TX) Primary
103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License 21953 (TX) Secondary
103TA0700X Adult Development & Aging Psychologist Behavioral Health & Social Service Providers · License 21953 (TX) Secondary
103TF0000X Family Psychologist Behavioral Health & Social Service Providers · License 21953 (TX) Secondary
103TF0200X Forensic Psychologist Behavioral Health & Social Service Providers · License 21953 (TX) Secondary
103TM1800X Intellectual & Developmental Disabilities Psychologist Behavioral Health & Social Service Providers · License 21953 (TX) Secondary
103TR0400X Rehabilitation Psychologist Behavioral Health & Social Service Providers · License 21953 (TX) Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
P000TN168 Medicaid TX -

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

Where does Leon Peek practice?
The practice location on file with NPPES is in Denton, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Leon Peek?
The National Provider Identifier (NPI) for Leon Peek is 1255351177, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-20.