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

Mr. Dennis W Slater, LCSW

Individual provider Clinical Social Worker · NPI 1619043403

Mr. Dennis W Slater, LCSW is a Clinical Social Worker in Holbrook, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

4250 Veterans Memorial Hwy Ste 215
Holbrook, NY 11741-4000
Phone: (631) 331-7292
Fax: (631) 474-4272
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 021742-1 (NY)

Record details

NPI number1619043403
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedNovember 26, 2006
Last updated in NPPESJuly 8, 2007

Other providers in Holbrook