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DR. DEREK DUANE ISETTI PHD
NPI 1477344398
Social Worker in Calabasas, CA

Active since May 13, 2025
4774 PARK GRANADA UNIT 8742, CALABASAS, CA 91302(310) 853-2489 Get Directions Write a Review

NPPES record last updated: April 29, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 29, 2026, May 13, 2025 (2 updates tracked since 2025).

About Dr. Derek Duane Isetti Phd NPPES

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

DR. DEREK DUANE ISETTI PHD (NPI 1477344398) is an individual social worker in Calabasas, California, licensed in California (ASW133952) and active in the NPI registry since May 2025.

NPPES Registry Identity

NPI1477344398
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameDR. DEREK DUANE ISETTICredential: PHD
Location Address4774 PARK GRANADA UNIT 8742Calabasas, CA 91302-1550
Mailing Address4774 Park Granada Unit 8742Calabasas, CA 91302-1550 · (310) 853-2489
Phone(310) 853-2489
Sole ProprietorNo
Enumeration DateMay 13, 2025
Last NPPES UpdateApril 29, 20262 updates tracked since enumeration
NPPES CertifiedApril 29, 2026
✔ NPI 1477344398 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in CA · ASW133952
Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

4774 PARK GRANADA UNIT 8742, Calabasas, CA 91302
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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 Derek Isetti's NPI number?

The NPI number for Derek Isetti is 1477344398. It was assigned to this individual provider in the NPPES registry on May 13, 2025.

Where is Derek Isetti located?

Derek Isetti practices at 4774 Park Granada Unit 8742, Calabasas, CA 91302. The listed phone number is (310) 853-2489.

What is Derek Isetti's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Derek Isetti was last updated on April 29, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.