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

Nancy Sieck-Quillen, LCSW

Individual provider School Social Worker · NPI 1932358926

Nancy Sieck-Quillen, LCSW is a School Social Worker in Felton, Delaware. Licensed in Delaware. Registered with an NPI since 2008.

Licensed in
DE
In the registry since
2008
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

5423 Killens Pond Rd
Felton, DE 19943-1901
Phone: (302) 284-3020
Show map & directions

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

Specialties & licences

School Social Worker (primary) Taxonomy 1041S0200X · Licence Q10000546 (DE)

Record details

NPI number1932358926
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedSeptember 15, 2008
Last updated in NPPESSeptember 15, 2008