Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William Cortland Guy, PHD

Individual provider Clinical Psychologist · NPI 1942756242

Dr. William Cortland Guy, PHD is a Clinical Psychologist in San Antonio, Texas. Licensed in Michigan and Texas. Registered with an NPI since 2016.

Licensed in
MI, TX
In the registry since
2016
Specialties on file
4
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

8535 Tom Slick
San Antonio, TX 78229-3367
Phone: (210) 593-2157
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 37345 (TX)
Clinical Psychologist Taxonomy 103TC0700X · Licence 6301014808 (MI)
Clinical Psychologist Taxonomy 103TC0700X · Licence 37345 (TX)
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X · Licence 37345 (TX)

Record details

NPI number1942756242
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedAugust 28, 2016
Last updated in NPPESNovember 21, 2019

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