Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

THOMAS GUILIANO JR.
NPI 1518873231
Psychologist in Lagunitas, CA

Active since August 21, 2026
125 MOUNTAIN VIEW AVENUE, LAGUNITAS, CA 94938(973) 970-4898 Get Directions Write a Review

NPPES record added: August 21, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Thomas Guiliano Jr. NPPES

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

THOMAS GUILIANO JR. (NPI 1518873231) is an individual psychologist in Lagunitas, California and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1518873231
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameTHOMAS GUILIANO JR.
Location Address125 MOUNTAIN VIEW AVENUELagunitas, CA 94938
Mailing Address125 Mountain View AvenueLagunitas, CA 94938 · (973) 970-4898
Sole ProprietorNo
Enumeration DateAugust 21, 2026
NPPES CertifiedAugust 18, 2026
NPI 1518873231 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
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.
125 MOUNTAIN VIEW AVENUE, Lagunitas, CA 94938

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 Guiliano's NPI number?

The NPI number for Thomas Guiliano is 1518873231. It was assigned to this individual provider in the NPPES registry on August 21, 2026.

Where is Thomas Guiliano located?

Thomas Guiliano practices at 125 Mountain View Avenue, Lagunitas, CA 94938. The listed phone number is (973) 970-4898.

What is Thomas Guiliano'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 Guiliano was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.