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WILLIAM O THOMASON PH.D
NPI 1912069543
Psychologist - Family in Terrell, TX

Active since December 13, 2006
1200 E BRIN ST, TERRELL, TX 75160(972) 551-8826 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William O Thomason Ph.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM O THOMASON PH.D (NPI 1912069543) is an individual family provider in Terrell, Texas, licensed in Texas (25481) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1912069543
Entity TypeIndividualMale
Primary Taxonomy103TF0000X
Provider Legal NameWILLIAM O THOMASONCredential: PH.D
Location Address1200 E BRIN STTerrell, TX 75160
Mailing AddressPo Box 70Terrell, TX 75160
Phone(972) 551-8826
Sole ProprietorNo
Enumeration DateDecember 13, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1912069543 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychologist · FamilyBehavioral Health & Social Service Providers
Taxonomy Code103TF0000X
License✔ Licensed in TX · 25481
Definition
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.
Also ListedPsychologist · Addiction (Substance Use Disorder)Taxonomy 103TA0400X · License 25481 (TX)
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 25481 (TX)

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LINDSEY NICOLE WHITE
Student in an Organized Health Care Education/Training Program
1200 E BRIN ST
TERRELL, TX 75160
Kaufman County (972) 563-6452
EDWARD WEIDOW D.O.
Psychiatry & Neurology (Psychiatry)
1200 E BRIN ST
TERRELL, TX 75160
Kaufman County (972) 524-6452
MR. DHAVAL PARIKH MD
Psychiatry & Neurology (Child & Adolescent Psychiatry)
1200 E BRIN ST
TERRELL, TX 75160
Kaufman County (972) 451-8027
DR. MADELINE REX-LEAR PHD
Psychologist (Clinical)
1200 E BRIN ST
TERRELL, TX 75160
Kaufman County (972) 551-8438
SUSANA FEHR LAMPLEY MD
Psychiatry & Neurology (Psychiatry)
1200 E BRIN ST
TERRELL, TX 75160
Kaufman County (432) 352-8191
DAN TUONG NGUYEN PHARM. D
Pharmacist
1200 E BRIN ST, PHARMACY
TERRELL, TX 75160
Kaufman County (972) 651-8836
DR. MARJORIE L BRUHN MD
Psychiatry & Neurology (Psychiatry)
1200 E BRIN ST
TERRELL, TX 75160
Kaufman County (972) 551-8247
ANKIT ANILKUMAR PARMAR MD, MHA
Psychiatry & Neurology (Child & Adolescent Psychiatry)
1200 E BRIN ST
TERRELL, TX 75160
Kaufman County (972) 551-8429

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Thomason's NPI number?

The NPI number for William Thomason is 1912069543. It was assigned to this individual provider in the NPPES registry on December 13, 2006.

Where is William Thomason located?

William Thomason practices at 1200 E Brin St, Terrell, TX 75160. The listed phone number is (972) 551-8826.

What is William Thomason's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Family, with taxonomy code 103TF0000X.

When was this NPI record last updated?

The NPPES record for William Thomason was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.