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

Individual provider Clinical Social Worker · NPI 1497988398

Mrs. Lillian Janet Foss, LCSW is a Clinical Social Worker in Southold, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2009
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

135 Liberty Ln
Southold, NY 11971-2117
Phone: (631) 765-8930
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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 076789 (NY)

Record details

NPI number1497988398
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedAugust 26, 2009
Last updated in NPPESAugust 26, 2009

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