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JOSHUA SIMPSON
NPI 1104350792
Social Worker - Clinical in Walnut, CA

Active since April 20, 2017
340 S LEMON AVE STE 9892, WALNUT, CA 91789(415) 403-2156 Get Directions Write a Review

NPPES record last updated: July 25, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 6, 2022, Dec 21, 2017, Apr 20, 2017 (3 updates tracked since 2017).

About Joshua Simpson NPPES

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

JOSHUA SIMPSON (NPI 1104350792) is an individual clinical provider in Walnut, California, licensed in California (LCSW118202) and active in the NPI registry since April 2017. He maintains a secondary practice location in Fullerton.

NPPES Registry Identity

NPI1104350792
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameJOSHUA SIMPSON
Location Address340 S LEMON AVE STE 9892Walnut, CA 91789-2706
Mailing AddressPo Box 14824Long Beach, CA 90853-4824 · (909) 241-1746
Phone(415) 403-2156
Sole ProprietorYes
Enumeration DateApril 20, 2017
Last NPPES UpdateJuly 25, 20253 updates tracked since enumeration
NPPES CertifiedJuly 25, 2025
✔ NPI 1104350792 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in CA · LCSW118202✔ Licensed in CA · ASW97971
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedCase Manager/Care CoordinatorTaxonomy 171M00000X
Also ListedRehabilitation PractitionerTaxonomy 225400000X
340 S LEMON AVE STE 9892, Walnut, CA 91789
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Secondary Practice Location 1

Location 1801 E Chapman Ave, #203Fullerton, CA 92831-3839 · Phone (714) 680-9000 ext. 9034 · Fax (714) 680-8233

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 Joshua Simpson's NPI number?

The NPI number for Joshua Simpson is 1104350792. It was assigned to this individual provider in the NPPES registry on April 20, 2017.

Where is Joshua Simpson located?

Joshua Simpson practices at 340 S Lemon Ave Ste 9892, Walnut, CA 91789. The listed phone number is (415) 403-2156.

What is Joshua Simpson's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Joshua Simpson was last updated on July 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.