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

WILLIAM ZARILLO LCSW, EDM
NPI 1316743693
Social Worker - Clinical in Iselin, NJ

Active since February 19, 2025
3 RONSON RD APT 4519, ISELIN, NJ 08830(201) 688-0209 Get Directions Write a Review

NPPES record last updated: October 21, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About William Zarillo Lcsw, Edm NPPES

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

WILLIAM ZARILLO LCSW, EDM (NPI 1316743693) is an individual clinical provider in Iselin, New Jersey, licensed in New Jersey (44SC06445500) and active in the NPI registry since February 2025. He maintains a secondary practice location in Newark.

NPPES Registry Identity

NPI1316743693
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameWILLIAM ZARILLOCredential: LCSW, EDM
Location Address3 RONSON RD APT 4519Iselin, NJ 08830-3197
Mailing Address3 Ronson Rd Apt 4519Iselin, NJ 08830-3197
Phone(201) 688-0209
Sole ProprietorYes
Enumeration DateFebruary 19, 2025
Last NPPES UpdateOctober 21, 2026
NPPES CertifiedOctober 21, 2026
✔ NPI 1316743693 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in NJ · 44SC06445500
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.
3 RONSON RD APT 4519, Iselin, NJ 08830
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Secondary Practice Location 1

Location 1323 Dr Martin Luther King Jr BlvdNewark, NJ 07102-1824 · Phone (201) 704-1363

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

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 William Zarillo's NPI number?

The NPI number for William Zarillo is 1316743693. It was assigned to this individual provider in the NPPES registry on February 19, 2025.

Where is William Zarillo located?

William Zarillo practices at 3 Ronson Rd Apt 4519, Iselin, NJ 08830. The listed phone number is (201) 688-0209.

What is William Zarillo's specialty?

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

What insurance does William Zarillo accept?

Health plans from Oscar Health list William Zarillo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Zarillo was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.