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

Justin Leider, LMSW

Individual provider Social Worker · NPI 1265015739

Justin Leider, LMSW is a Social Worker in Brooklyn, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2021
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

858 E 29th St
Brooklyn, NY 11210-2927
Phone: (718) 859-4500
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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 109878 (NY)

Record details

NPI number1265015739
Entity typeIndividual (Type 1)
GenderMale
Credentials LMSW
Sole proprietorYes
NPI enumeratedMay 3, 2021
Last updated in NPPESMay 3, 2021
Certification dateMay 3, 2021

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