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

MS. Katherine Hammer, CSW

Individual provider Mental Health Counselor · NPI 1972750693

MS. Katherine Hammer, CSW is a Mental Health Counselor in Brooklyn, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2008
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Practice location Address checks out

300 Flatbush Ave
Brooklyn, NY 11217-2812
Phone: (718) 622-2000
Fax: (718) 298-3328
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 073428-1 (NY)

Record details

NPI number1972750693
Entity typeIndividual (Type 1)
GenderFemale
Credentials CSW
Sole proprietorYes
NPI enumeratedAugust 25, 2008
Last updated in NPPESAugust 25, 2008

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