What is Lillian Foss's NPI number?

Lillian Foss's National Provider Identifier (NPI) is 1497988398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Lillian Foss's specialty?

Lillian Foss is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).

Where is Lillian Foss located?

Lillian Foss's practice location on file with NPPES is 135 Liberty Ln, Southold, NY 11971-2117.

What is Lillian Foss's phone number?

The practice phone number listed in the NPPES registry for Lillian Foss is (631) 765-8930.

Is Lillian Foss's NPI active?

Yes — Lillian Foss's NPI (1497988398) is active in the NPPES registry as of the last update on 2009-08-26.

IndividualActive

Lillian Foss, LCSW

NPI 1497988398 · Clinical Social Worker · Southold, NY

Lillian Foss, LCSW is a Clinical Social Worker provider in Southold, NY (NPI 1497988398).

Provider details

NPI number: 1497988398
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW
Sex: Female
Sole proprietor: Yes
License: 076789 (NY)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense 076789 (NY)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(85/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
16 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

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

135 Liberty Ln

Southold, NY 11971-2117

Phone: (631) 765-8930

Street-level locationGet directions

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Mailing address