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

Q: 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.

Q: What is Derek Isetti's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Derek Isetti was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

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: August 16, 2026.

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

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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 weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.