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

Stephanie Johnston, MSW

Individual provider Social Worker · NPI 1194171983

Stephanie Johnston, MSW is a Clinical Social Worker in Rockville, Maryland. Qualified in 1993, 33 years ago. Practices with Willow Oak Therapy Center, Inc, an 18-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
33
Licensed in
MD
In the registry since
2016
Specialties on file
2
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

15841 Crabbs Branch Way
Rockville, MD 20855-6625
Phone: (391) 251-8964
Show map & directions

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

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 28737 (MD)
Social Worker Taxonomy 104100000X · Licence G05900 (MD)

Record details

NPI number1194171983
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW
Sole proprietorNo
NPI enumeratedMay 11, 2016
Last updated in NPPESJuly 18, 2022
Certification dateJuly 18, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Willow Oak Therapy Center, Inc — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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