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

Organization Clinical Social Worker · NPI 1336746502

Matt Sosnowsky, PLLC is a Clinical Social Worker in Philadelphia, Pennsylvania. Works from 2 locations. Registered with an NPI since 2020.

In the registry since
2020
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

148 N 3rd St
Philadelphia, PA 19106-1733
Phone: (610) 217-7955
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2929 Connecticut Ave Nw Apt 406, Washington, DC 20008-1419 — (610) 217-7955

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X

Record details

NPI number1336746502
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Matthew Sosnowsky — Member · (610) 217-7955
Other names Philadelphia Talk Therapy; Philadelphia Talk Therapy
NPI enumeratedOctober 1, 2020
Last updated in NPPESSeptember 28, 2021
Certification dateSeptember 15, 2021
Mailing addressPo Box 40333, 615 Chestnut St, Philadelphia, PA 19106-1419

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