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

Alexander L Grinberg

Individual provider Social Worker · NPI 1689550220

Alexander L Grinberg is a Social Worker in Brooklyn, New York. Practices as a sole proprietor. Registered with an NPI since 2025.

In the registry since
2025

Practice location Address checks out

365 Willoughby Ave
Brooklyn, NY 11205-5191
Phone: (201) 914-5599
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X

Record details

NPI number1689550220
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedAugust 11, 2025
Last updated in NPPESAugust 11, 2025
Certification dateAugust 11, 2025

Other providers in Brooklyn