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MS. JESSICA KNOLL O'BRIEN LCSW, CASAC
NPI 1679729206
Social Worker - Clinical in Summit, NJ

Active since August 14, 2008
45 RIVER ROAD, SUITE 4, SUMMIT, NJ 07901(973) 370-0161 Get Directions Write a Review

NPPES record last updated: October 2, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Ms. Jessica Knoll O'brien Lcsw, Casac NPPES

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

MS. JESSICA KNOLL O'BRIEN LCSW, CASAC (NPI 1679729206) is an individual clinical provider in Summit, New Jersey, licensed in New York (079377) and active in the NPI registry since August 2008.

NPPES Registry Identity

NPI1679729206
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. JESSICA KNOLL O'BRIENCredential: LCSW, CASAC
Location Address45 RIVER ROAD, SUITE 4Summit, NJ 07901
Mailing Address12 Dale DriveSummit, NJ 07901 · (617) 312-8872
Phone(973) 370-0161
Sole ProprietorYes
Enumeration DateAugust 14, 2008
Last NPPES UpdateOctober 2, 2025
NPPES CertifiedOctober 2, 2025
✔ NPI 1679729206 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in NY · 079377✔ Licensed in NY · 079377-1✔ Licensed in NJ · 44SC5811000
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 ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License CASAC-23901 (NY), 23901 (NY)
45 RIVER ROAD, Summit, NJ 07901
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Other Names 1

Former Name (1)Jessica Ann Knoll Lcsw

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 Jessica O'brien's NPI number?

The NPI number for Jessica O'brien is 1679729206. It was assigned to this individual provider in the NPPES registry on August 14, 2008. The provider is also known as Jessica Ann Knoll Lcsw.

Where is Jessica O'brien located?

Jessica O'brien practices at 45 River Road Suite 4, Summit, NJ 07901. The listed phone number is (973) 370-0161.

What is Jessica O'brien'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 Jessica O'brien was last updated on October 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.