Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Michael John Callahan, DSW, MSW, LCSW

Individual provider Clinical Social Worker · NPI 1811589559

Dr. Michael John Callahan, DSW, MSW, LCSW is a Clinical Social Worker in Newark, New Jersey. Works from 2 locations. Licensed in New Jersey.

Licensed in
NJ
In the registry since
2021
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

35 Halsey St
Newark, NJ 07102-3047
Phone: (973) 723-2307
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 120 Morris Ave, Summit, NJ 07901-4184 — (908) 273-0176

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 44SC05953900 (NJ)

Record details

NPI number1811589559
Entity typeIndividual (Type 1)
GenderMale
Credentials DSW , MSW , LCSW
Sole proprietorNo
NPI enumeratedFebruary 4, 2021
Last updated in NPPESJanuary 13, 2022
Certification dateJanuary 13, 2022

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