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

Marshall B Johnson, LMSW

Individual provider Social Worker · NPI 1740572130

Marshall B Johnson, LMSW is a Social Worker in Cortland, New York. Licensed in New York. Registered with an NPI since 2011.

Licensed in
NY
In the registry since
2011
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

See every abbreviation used in this directory →

Practice location Address checks out

7 Clayton Ave
Cortland, NY 13045-2501
Phone: (607) 758-6110
Fax: (607) 758-3770
Show map & directions

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

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 07854 (NY)

Record details

NPI number1740572130
Entity typeIndividual (Type 1)
GenderMale
Credentials LMSW
Sole proprietorNo
NPI enumeratedMay 4, 2011
Last updated in NPPESMay 4, 2011
Mailing address7 Clayton Ave, Cortland, NY 13045-2501

Other providers in Cortland