Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Greg James Mahoney, LCSW

Individual provider Clinical Social Worker · NPI 1740506658

Mr. Greg James Mahoney, LCSW is a Clinical Social Worker in Hicksville, New York. Licensed in New York. Registered with an NPI since 2010.

Licensed in
NY
In the registry since
2010
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

950 S Oyster Bay Rd
Hicksville, NY 11801-3510
Phone: (516) 822-6111
Fax: (516) 396-0552
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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 083249 (NY)
Clinical Social Worker Taxonomy 1041C0700X · Licence 080921 (NY)

Record details

NPI number1740506658
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedApril 16, 2010
Last updated in NPPESJuly 31, 2015

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