Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. THOMAS DENNIS GEARY PHD
NPI 1689668774
Psychologist in Houston, TX

Active since September 06, 2005
17115 RED OAK DR, STE 109, HOUSTON, TX 77090(281) 893-4111(281) 893-8082 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Thomas Dennis Geary Phd NPPES

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

DR. THOMAS DENNIS GEARY PHD (NPI 1689668774) is an individual psychologist in Houston, Texas, licensed in Texas (22857) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1689668774
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. THOMAS DENNIS GEARYCredential: PHD
Location Address17115 RED OAK DR, STE 109Houston, TX 77090-2641
Mailing Address17115 Red Oak Dr, Ste 109Houston, TX 77090-2641 · (281) 893-4111 · Fax (281) 893-8082
Fax(281) 893-8082
Sole ProprietorNo
Enumeration DateSeptember 6, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1689668774 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in TX · 22857
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
17115 RED OAK DR, Houston, TX 77090

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.

Counselor (Mental Health)
17115 RED OAK DR, 116
HOUSTON, TX 77090
Dentist (General Practice)
17115 RED OAK DR
HOUSTON, TX 77090
Internal Medicine (Interventional Cardiology)
17115 RED OAK DR, SUITE 121
HOUSTON, TX 77090
Psychologist
17115 RED OAK DR, SUITE 220
HOUSTON, TX 77090
Specialist
17115 RED OAK DR, SUITE 213
HOUSTON, TX 77090
Clinic/Center (Sleep Disorder Diagnostic)
17115 RED OAK DR, STE 216
HOUSTON, TX 77090
Pediatrics
17115 RED OAK DR, 201
HOUSTON, TX 77090
Specialist
17115 RED OAK DR, STE 109
HOUSTON, TX 77090

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 Thomas Geary's NPI number?

The NPI number for Thomas Geary is 1689668774. It was assigned to this individual provider in the NPPES registry on September 6, 2005.

Where is Thomas Geary located?

Thomas Geary practices at 17115 Red Oak Dr Ste 109, Houston, TX 77090. The listed phone number is (281) 893-4111.

What is Thomas Geary's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

When was this NPI record last updated?

The NPPES record for Thomas Geary was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.