Katharine Sidelnik, LMSW
NPI 1205550654 · Clinical Social Worker · Kingston, NY
Katharine Sidelnik, LMSW is a Clinical Social Worker provider in Kingston, NY (NPI 1205550654).
Provider details
- NPI number
- 1205550654
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Female
- Sole proprietor
- No
- License
- 117509 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 27 Flanders LnWest Hurley, NY 12491-5612Phone: (845) 445-8326
Registry dates
- Enumerated
- 2022-09-29
- Last updated
- 2026-06-04
- Certified
- 2026-06-04
Frequently asked questions
- What is Katharine Sidelnik's NPI number?
- Katharine Sidelnik's National Provider Identifier (NPI) is 1205550654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Sidelnik's specialty?
- Katharine Sidelnik is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Katharine Sidelnik located?
- Katharine Sidelnik's practice location on file with NPPES is 275 Fair St, Kingston, NY 12401-3800.
- What is Katharine Sidelnik's phone number?
- The practice phone number listed in the NPPES registry for Katharine Sidelnik is (845) 445-8326.
- Is Katharine Sidelnik's NPI active?
- Yes — Katharine Sidelnik's NPI (1205550654) is active in the NPPES registry as of the last update on 2026-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.