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

Susan Nancy Duffy, LMSW

Individual provider Clinical Social Worker · NPI 1932864535

Susan Nancy Duffy, LMSW is a Clinical Social Worker in Mount Sinai, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2021
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

28 N Country Rd Ste 203
Mount Sinai, NY 11766-1518
Phone: (631) 759-4304
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 051524 (NY)

Record details

NPI number1932864535
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorYes
NPI enumeratedNovember 8, 2021
Last updated in NPPESOctober 15, 2022
Certification dateOctober 15, 2022
Mailing address19 Thomas Rd, Sound Beach, NY 11789-1245

Other providers in Mount Sinai