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

Matthew Sosnowsky

Individual provider Social Worker · NPI 1376806208

Matthew Sosnowsky is a Social Worker in Philadelphia, Pennsylvania. Works from 3 locations. Licensed in District of Columbia and Maryland.

Licensed in
DC, MD
In the registry since
2012
Specialties on file
2

Practice location Address checks out

148 N 3rd St
Philadelphia, PA 19106-1733
Phone: (610) 217-7955
Show map & directions

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

Additional practice locations (2)

  • 2929 Connecticut Ave Nw Apt 406, Washington, DC 20008-1419 — (610) 217-7955
  • 7474 Greenway Center Dr, Greenbelt, MD 20770-3504 — (301) 345-1022

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LC50080383 (DC)
Social Worker Taxonomy 104100000X · Licence 18136 (MD)

Record details

NPI number1376806208
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 15, 2012
Last updated in NPPESSeptember 28, 2021
Certification dateSeptember 15, 2021

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