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

Daniel Hartnett, LCSW

Individual provider Clinical Social Worker · NPI 1932522091

Daniel Hartnett, LCSW is a Clinical Social Worker in Sag Harbor, New York. Licensed in New York. Registered with an NPI since 2014.

Licensed in
NY
In the registry since
2014
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Practice location Address checks out

54 Cliff Dr
Sag Harbor, NY 11963-1805
Phone: (631) 725-6032
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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 069974-1 (NY)

Record details

NPI number1932522091
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJanuary 27, 2014
Last updated in NPPESJanuary 27, 2014

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