Individual provider · Type 1 NPI

William O. Thomason, PhD

Family Psychologist · Terrell, TX

NPI number 1912069543 Active

Practice location

1200 E Brin St
Terrell, TX 75160

Call (972) 551-8826 Map

Mailing address

PO Box 70
Terrell, TX 75160

Specialties and licenses

TaxonomyCodeLicense
Addiction (Substance Use Disorder) Psychologist 103TA0400X25481 (TX)
Clinical Psychologist 103TC0700X25481 (TX)
Family Psychologist Primary 103TF0000X25481 (TX)

Family Psychologist: A psychologist whose specialty is founded on principles of systems theory with the interpersonal system of the family the focus of assessment, intervention and research.

22 other providers at this address

About NPI 1912069543

William O. Thomason, PhD's National Provider Identifier is 1912069543, issued on Dec 13, 2006. The primary taxonomy on file is Family Psychologist (103TF0000X), and the practice location is in Terrell, TX. The record was last updated on Sep 11, 2025.