MRS. LILLIAN JANET FOSS LCSW
NPI 1497988398
Social Worker - Clinical in Southold, NY

Active since August 26, 2009
135 LIBERTY LN, SOUTHOLD, NY 11971(631) 765-8930 Get Directions Write a Review

NPPES record last updated: August 26, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Lillian Janet Foss Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. LILLIAN JANET FOSS LCSW (NPI 1497988398) is an individual clinical provider in Southold, New York, licensed in New York (076789) and active in the NPI registry since August 2009.

NPPES Registry Identity

NPI1497988398
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. LILLIAN JANET FOSSCredential: LCSW
Location Address135 LIBERTY LNSouthold, NY 11971-2117
Mailing Address135 Liberty LnSouthold, NY 11971-2117 · (631) 765-8930
Sole ProprietorYes
Enumeration DateAugust 26, 2009
NPI 1497988398 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in NY · 076789
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
135 LIBERTY LN, Southold, NY 11971

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lillian Foss's NPI number?

The NPI number for Lillian Foss is 1497988398. It was assigned to this individual provider in the NPPES registry on August 26, 2009.

Where is Lillian Foss located?

Lillian Foss practices at 135 Liberty Ln, Southold, NY 11971. The listed phone number is (631) 765-8930.

What is Lillian Foss's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Lillian Foss was last updated on August 26, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.