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Janette Marsac, LMSW, RDN

Social Worker in Freeport, NY · enumerated 2009.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1518106392

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Registry record

Entity type Individual (Type 1)
Name Janette Marsac
Credential LMSW, RDN
Sex Female
Practice address 91 Guy Lombardo Ave, Freeport, NY, 11520
Phone (516) 868-3030
Enumeration date Feb 18, 2009
Last updated in NPPES May 6, 2015

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 979701 (NY) Secondary
104100000X Social Worker Behavioral Health & Social Service Providers · License 093465-1 (NY) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Janette Marsac?
Janette Marsac is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-06.