MARY P JOHNSTON LSW
NPI 1750253761
Social Worker in Pittsburgh, PA

Q: What is Mary Johnston's NPI number?

The NPI number for Mary Johnston is 1750253761. It was assigned to this individual provider in the NPPES registry on September 19, 2025.

Q: What is Mary Johnston's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Q: When was this NPI record last updated?

The NPPES record for Mary Johnston was last updated on September 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 19, 2025

4800 FRIENDSHIP AVE STE N-1, PITTSBURGH, PA 15224(412) 578-4030 Get Directions Write a Review

NPPES record last updated: September 19, 2025. Verified against the NPPES registry weekly; last sync: September 27, 2026.

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About Mary P Johnston Lsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY P JOHNSTON LSW (NPI 1750253761) is an individual social worker in Pittsburgh, Pennsylvania, licensed in Pennsylvania (SW143142) and active in the NPI registry since September 2025.

NPPES Registry Identity

NPI1750253761

Entity TypeIndividualFemale

Primary Taxonomy104100000X

Provider Legal NameMARY P JOHNSTONCredential: LSW

Location Address4800 FRIENDSHIP AVE STE N-1Pittsburgh, PA 15224-1722

Mailing Address4800 Friendship Ave Ste N-1Pittsburgh, PA 15224-1722 · (412) 578-4030

Phone(412) 578-4030

Sole ProprietorYes

Enumeration DateSeptember 19, 2025

NPPES CertifiedSeptember 19, 2025

✔ NPI 1750253761 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

Licenses✔ Licensed in PA · SW143142✔ Licensed in MA · LCSW216780

Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

4800 FRIENDSHIP AVE STE N-1, Pittsburgh, PA 15224

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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ELIZABETH ANN ANISH MSW

Counselor (Mental Health)

4800 FRIENDSHIP AVE STE N-1
PITTSBURGH, PA 15224

Allegheny County (412) 578-4030

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Johnston's NPI number?

The NPI number for Mary Johnston is 1750253761. It was assigned to this individual provider in the NPPES registry on September 19, 2025.

Where is Mary Johnston located?

Mary Johnston practices at 4800 Friendship Ave Ste N-1, Pittsburgh, PA 15224. The listed phone number is (412) 578-4030.

What is Mary Johnston's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Mary Johnston was last updated on September 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.