Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ADAM JOSEPH LOSK
NPI 1083301550
Psychologist in Tarzana, CA

Active since April 24, 2023
18646 OXNARD ST, TARZANA, CA 91356(818) 996-1051 Get Directions Write a Review

NPPES record last updated: September 15, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 15, 2026, Aug 12, 2024 (2 updates tracked since 2024).

About Adam Joseph Losk NPPES

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

ADAM JOSEPH LOSK (NPI 1083301550) is an individual psychologist in Tarzana, California and active in the NPI registry since April 2023. He maintains a secondary practice location in Van Nuys.

NPPES Registry Identity

NPI1083301550
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameADAM JOSEPH LOSK
Location Address18646 OXNARD STTarzana, CA 91356-1411
Mailing Address15339 Saticoy StVan Nuys, CA 91406-3345 · (818) 267-2681
Sole ProprietorNo
Enumeration DateApril 24, 2023
Last NPPES UpdateSeptember 15, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 15, 2026
✔ NPI 1083301550 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.
18646 OXNARD ST, Tarzana, CA 91356

Secondary Practice Location 1

Location 115339 Saticoy StVan Nuys, CA 91406-3345 · Phone (818) 267-2681

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.

Registered Nurse (Case Management)
18646 OXNARD ST
TARZANA, CA 91356
Counselor (Addiction (Substance Use Disorder))
18646 OXNARD ST
TARZANA, CA 91356
Peer Specialist
18646 OXNARD ST
TARZANA, CA 91356
Peer Specialist
18646 OXNARD ST
TARZANA, CA 91356
Counselor (Addiction (Substance Use Disorder))
18646 OXNARD ST
TARZANA, CA 91356
Counselor (Addiction (Substance Use Disorder))
18646 OXNARD ST
TARZANA, CA 91356
Student in an Organized Health Care Education/Training Program
18646 OXNARD ST
TARZANA, CA 91356
Peer Specialist
18646 OXNARD ST
TARZANA, CA 91356

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 Adam Losk's NPI number?

The NPI number for Adam Losk is 1083301550. It was assigned to this individual provider in the NPPES registry on April 24, 2023.

Where is Adam Losk located?

Adam Losk practices at 18646 Oxnard St, Tarzana, CA 91356. The listed phone number is (818) 996-1051.

What is Adam Losk'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 Adam Losk was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.