Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Christopher Gerald Callahan, LCSW, CASAC

Individual provider Clinical Social Worker · NPI 1316420714

Christopher Gerald Callahan, LCSW, CASAC is a Clinical Social Worker in Port Jefferson, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2018
Specialties on file
2
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

1000 Main St Ste 3
Port Jefferson, NY 11777-2250
Phone: (631) 743-5659
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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 096108 (NY)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 30721 (NY)

Record details

NPI number1316420714
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW , CASAC
Sole proprietorYes
NPI enumeratedSeptember 11, 2018
Last updated in NPPESSeptember 14, 2023
Certification dateSeptember 14, 2023

Other providers in Port Jefferson