Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. John F Gasiewski, LCSW

Individual provider Clinical Social Worker · NPI 1538246137

Mr. John F Gasiewski, LCSW is a Clinical Social Worker in Summit, New Jersey. Licensed in New Jersey. Registered with an NPI since 2006.

Licensed in
NJ
In the registry since
2006
What do these letters mean?
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

99 Beauvoir Ave Overlook Hospital
Summit, NJ 07901-3533
Phone: (908) 522-2970
Fax: (908) 522-4888
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 44SC05311900 (NJ)

Record details

NPI number1538246137
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESMarch 11, 2010

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