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

Jill Tiefen, LCSW

Individual provider Clinical Social Worker · NPI 1669762589

Jill Tiefen, LCSW is a Clinical Social Worker in Wyckoff, New Jersey. Licensed in New Jersey. Registered with an NPI since 2011.

Licensed in
NJ
In the registry since
2011
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

291 Franklin Ave
Wyckoff, NJ 07481-2849
Phone: (201) 847-0119
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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 44SC00764700 (NJ)

Record details

NPI number1669762589
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedApril 12, 2011
Last updated in NPPESJune 8, 2011

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