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

Stefan Greendyk, LCSW

Individual provider Clinical Social Worker · NPI 1720799380

Stefan Greendyk, LCSW is a Clinical Social Worker in West Milford, New Jersey. Practices as a sole proprietor. Licensed in New Jersey.

Licensed in
NJ
In the registry since
2022
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

1560 Union Valley Rd
West Milford, NJ 07480-8000
Phone: (973) 907-0545
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 44SC06112400 (NJ)

Record details

NPI number1720799380
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedDecember 5, 2022
Last updated in NPPESDecember 5, 2022
Certification dateDecember 5, 2022

Other providers in West Milford