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

Jonathan Pfeffer, LCSW

Individual provider Clinical Social Worker · NPI 1831934074

Jonathan Pfeffer, LCSW is a Clinical Social Worker in Philadelphia, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2024.

Licensed in
PA
In the registry since
2024
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

419 S 19th St
Philadelphia, PA 19146-1415
Phone: (856) 376-7522
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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 CW027564 (PA)

Record details

NPI number1831934074
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJune 28, 2024
Last updated in NPPESJuly 30, 2026
Certification dateJuly 30, 2026

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