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

Katherine Brennan, LCSW

Individual provider Clinical Social Worker · NPI 1134452170

Katherine Brennan, LCSW is a Clinical Social Worker in Brooklyn, New York. Licensed in Missouri and New York. Registered with an NPI since 2009.

Licensed in
MO, NY
In the registry since
2009
Specialties on file
2
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

644 President St 2L
Brooklyn, NY 11215-1120
Phone: (913) 735-3603
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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 2009026528 (MO)
Clinical Social Worker Taxonomy 1041C0700X · Licence 8396385 (NY)

Record details

NPI number1134452170
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedSeptember 9, 2009
Last updated in NPPESMarch 7, 2016

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