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

JONATHAN TROLL
NPI 1699043950
Psychologist in Snohomish, WA

Active since December 01, 2011
312 MAPLE AVE STE B, SNOHOMISH, WA 98290(425) 312-3396 Get Directions Write a Review

NPPES record last updated: November 6, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 6, 2026, Jan 27, 2020 (2 updates tracked since 2020).

About Jonathan Troll NPPES

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

JONATHAN TROLL (NPI 1699043950) is an individual psychologist in Snohomish, Washington and active in the NPI registry since December 2011.

NPPES Registry Identity

NPI1699043950
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameJONATHAN TROLL
Location Address312 MAPLE AVE STE BSnohomish, WA 98290-3301
Mailing Address11904 12th St SeLake Stevens, WA 98258-9701
Sole ProprietorYes
Enumeration DateDecember 1, 2011
Last NPPES UpdateNovember 6, 20262 updates tracked since enumeration
NPPES CertifiedNovember 6, 2026
✔ NPI 1699043950 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.
312 MAPLE AVE STE B, Snohomish, WA 98290

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 Jonathan Troll's NPI number?

The NPI number for Jonathan Troll is 1699043950. It was assigned to this individual provider in the NPPES registry on December 1, 2011.

Where is Jonathan Troll located?

Jonathan Troll practices at 312 Maple Ave Ste B, Snohomish, WA 98290. The listed phone number is (425) 312-3396.

What is Jonathan Troll'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 Jonathan Troll was last updated on November 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.