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

Mary Gnieser, LCSW

Individual provider Clinical Social Worker · NPI 1083854202

Mary Gnieser, LCSW is a Clinical Social Worker in Commack, New York. Licensed in New York. Registered with an NPI since 2009.

Licensed in
NY
In the registry since
2009
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

340 Veterans Memorial Hwy Ste 12
Commack, NY 11725-4300
Phone: (631) 680-4278
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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 73 080458 (NY)

Record details

NPI number1083854202
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedFebruary 27, 2009
Last updated in NPPESApril 12, 2013

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