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

MS. Martha Flumenbaum, LMSW

Individual provider Social Worker · NPI 1174352819

MS. Martha Flumenbaum, LMSW is a Social Worker in New York, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2024
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

520 E 72nd St Apt 14D
New York, NY 10021-4853
Phone: (347) 835-4853
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 098999 (NY)

Record details

NPI number1174352819
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorYes
NPI enumeratedJuly 31, 2024
Last updated in NPPESJuly 31, 2024
Certification dateJuly 31, 2024

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