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

DR. GREGORY R THOMSON PHD
NPI 1750366902
Psychologist in San Jose, CA

Active since December 09, 2005
2512 SAMARITAN CT, SUITE I, SAN JOSE, CA 95124(408) 402-9858 Get Directions Write a Review

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

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. Gregory R Thomson Phd NPPES

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

DR. GREGORY R THOMSON PHD (NPI 1750366902) is an individual psychologist in San Jose, California, licensed in California (PSY14385) and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1750366902
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. GREGORY R THOMSONCredential: PHD
Location Address2512 SAMARITAN CT, SUITE ISan Jose, CA 95124-4002
Mailing AddressPo Box 3240Saratoga, CA 95070-1240 · (408) 402-9858
Sole ProprietorNo
Enumeration DateDecember 9, 2005
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPI 1750366902 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 6

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
Licenses Licensed in CA · PSY14385 Licensed in MI · 6301011373
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.
Also ListedClinical NeuropsychologistTaxonomy 103G00000X · License 6301011373 (MI), PSY14385 (CA)
Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X · License PSY14385 (CA), 6301011373 (MI)
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License PSY14385 (CA), 6301011373 (MI)
Also ListedPsychologist · CounselingTaxonomy 103TC1900X · License PSY14385 (CA), 6301011373 (MI)
Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X · License PSY14385 (CA), 6301011373 (MI)
2512 SAMARITAN CT, San Jose, CA 95124

Other Providers at the Same Location NPPES 12

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

Specialist
2512 SAMARITAN CT, SUITE C
SAN JOSE, CA 95124
Ophthalmology
2512 SAMARITAN CT, SUITE C
SAN JOSE, CA 95124
Surgery (Vascular Surgery)
2512 SAMARITAN CT, SUITE E
SAN JOSE, CA 95124
Psychologist (Clinical)
2512 SAMARITAN CT, # M
SAN JOSE, CA 95124
Podiatrist (Foot & Ankle Surgery)
2512 SAMARITAN CT, STE A
SAN JOSE, CA 95124
Internal Medicine
2512 SAMARITAN CT, SUITE M.
SAN JOSE, CA 95124
Pediatrics
2512 SAMARITAN CT, SUITE H
SAN JOSE, CA 95124
Podiatrist (Foot & Ankle Surgery)
2512 SAMARITAN CT, SUITE A
SAN JOSE, CA 95124

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 Gregory Thomson's NPI number?

The NPI number for Gregory Thomson is 1750366902. It was assigned to this individual provider in the NPPES registry on December 9, 2005.

Where is Gregory Thomson located?

Gregory Thomson practices at 2512 Samaritan Ct Suite I, San Jose, CA 95124. The listed phone number is (408) 402-9858.

What is Gregory Thomson'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 Gregory Thomson 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.