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

Katharine Sidelnik, LMSW

Individual provider Clinical Social Worker · NPI 1205550654

Katharine Sidelnik, LMSW is a Clinical Social Worker in Woodstock, New York. Licensed in New York. Registered with an NPI since 2022.

Licensed in
NY
In the registry since
2022
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

404 Zena Rd
Woodstock, NY 12498-2626
Phone: (845) 679-8650
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 117509 (NY)

Record details

NPI number1205550654
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorNo
NPI enumeratedSeptember 29, 2022
Last updated in NPPESJune 30, 2026
Certification dateJune 30, 2026

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