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

MS. Nancy Sullins Knapp, LCSW

Individual provider School Social Worker · NPI 1215244231

MS. Nancy Sullins Knapp, LCSW is a School Social Worker in Holbrook, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2010
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

15 Andrea Rd
Holbrook, NY 11741-4310
Phone: (631) 567-8518
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

School Social Worker (primary) Taxonomy 1041S0200X · Licence R044559-1 (NY)

Record details

NPI number1215244231
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedSeptember 13, 2010
Last updated in NPPESSeptember 13, 2010

Other providers in Holbrook