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

Mary P Johnston, LSW

Individual provider Social Worker · NPI 1750253761

Mary P Johnston, LSW is a Social Worker in Pittsburgh, Pennsylvania. Practices as a sole proprietor. Licensed in Massachusetts and Pennsylvania.

Licensed in
MA, PA
In the registry since
2025
Specialties on file
2
What do these letters mean?
LSW — Licensed Social Worker
A state-licensed social worker.

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Practice location Address checks out

4800 Friendship Ave Ste N-1
Pittsburgh, PA 15224-1722
Phone: (412) 578-4030
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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 SW143142 (PA)
Social Worker Taxonomy 104100000X · Licence LCSW216780 (MA)

Record details

NPI number1750253761
Entity typeIndividual (Type 1)
GenderFemale
Credentials LSW
Sole proprietorYes
NPI enumeratedSeptember 19, 2025
Last updated in NPPESSeptember 19, 2025
Certification dateSeptember 19, 2025

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