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

Nina Ythier LCSW PC

Organization Social Worker · NPI 1477210284

Nina Ythier LCSW PC is a Social Worker in Ossining, New York. Registered with an NPI since 2021.

In the registry since
2021
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

17 Derby Ln
Ossining, NY 10562-2702
Phone: (914) 297-9998
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X

Record details

NPI number1477210284
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Nina Ythier — Owner · (914) 426-7789
NPI enumeratedNovember 29, 2021
Last updated in NPPESApril 8, 2026
Certification dateApril 8, 2026
Mailing address17 Derby Ln, Ossining, NY 10562-2702

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