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DR. MICHAEL JOHN CALLAHAN DSW, MSW, LCSW
NPI 1811589559
Social Worker - Clinical in Newark, NJ

Active since February 04, 2021
35 HALSEY ST, NEWARK, NJ 07102(973) 723-2307 Get Directions Write a Review

NPPES record last updated: January 13, 2022. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jan 13, 2022, Feb 4, 2021 (2 updates tracked since 2021).

About Dr. Michael John Callahan Dsw, Msw, Lcsw NPPES

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

DR. MICHAEL JOHN CALLAHAN DSW, MSW, LCSW (NPI 1811589559) is an individual clinical provider in Newark, New Jersey, licensed in New Jersey (44SC05953900) and active in the NPI registry since February 2021. He maintains a secondary practice location in Summit.

NPPES Registry Identity

NPI1811589559
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameDR. MICHAEL JOHN CALLAHANCredential: DSW, MSW, LCSW
Location Address35 HALSEY STNewark, NJ 07102-3047
Mailing Address120 Morris AveSummit, NJ 07901-4184 · (908) 273-0176
Phone(973) 723-2307
Sole ProprietorNo
Enumeration DateFebruary 4, 2021
Last NPPES UpdateJanuary 13, 20222 updates tracked since enumeration
NPPES CertifiedJanuary 13, 2022
✔ NPI 1811589559 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 · 44SC05953900
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.
35 HALSEY ST, Newark, NJ 07102
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Secondary Practice Location 1

Location 1120 Morris AveSummit, NJ 07901-4184 · Phone (908) 273-0176

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRIDGES OUTREACH, INC.
Clinic/Center
35 HALSEY ST
NEWARK, NJ 07102
Essex County (973) 723-2307

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 Michael Callahan's NPI number?

The NPI number for Michael Callahan is 1811589559. It was assigned to this individual provider in the NPPES registry on February 4, 2021.

Where is Michael Callahan located?

Michael Callahan practices at 35 Halsey St, Newark, NJ 07102. The listed phone number is (973) 723-2307.

What is Michael Callahan'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 Michael Callahan was last updated on January 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.