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

Katherine Duffy

Individual provider Clinical Social Worker · NPI 1952726184

Katherine Duffy is a Clinical Social Worker in Valhalla, New York. Works from 2 locations. Licensed in New York.

Licensed in
NY
In the registry since
2014

Practice location Address checks out

25 Operations Dr
Valhalla, NY 10595-1586
Phone: (914) 345-5900
Show map & directions

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

Additional practice locations (1)

  • 360 Massachusetts Ave, Acton, MA 01720 — (978) 935-8832

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 009775 (NY)

Record details

NPI number1952726184
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedFebruary 25, 2014
Last updated in NPPESJune 24, 2020
Certification dateJune 24, 2020
Mailing address580 White Plains Rd Ste 510, Tarrytown, NY 10591-5152

Other providers in Valhalla