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MARISSA FIELSTEIN LMSW
NPI 1619383668
Social Worker in Northport, NY

Active since July 09, 2014
79 MIDDLEVILLE RD, NORTHPORT, NY 11768(631) 261-4400 Get Directions Write a Review

NPPES record last updated: July 9, 2014. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Marissa Fielstein Lmsw NPPES

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

MARISSA FIELSTEIN LMSW (NPI 1619383668) is an individual social worker in Northport, New York, licensed in New York (092019) and active in the NPI registry since July 2014.

NPPES Registry Identity

NPI1619383668
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameMARISSA FIELSTEINCredential: LMSW
Location Address79 MIDDLEVILLE RDNorthport, NY 11768-2200
Mailing Address2 Hobart StEast Islip, NY 11730-2806
Phone(631) 261-4400
Sole ProprietorYes
Enumeration DateJuly 9, 2014
✔ NPI 1619383668 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in NY · 092019
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
79 MIDDLEVILLE RD, Northport, NY 11768
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KERI MARIE PINELLI LMSW
Social Worker
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Suffolk County (631) 261-4400
JEANINE MICHELE DELGADO LCSW
Social Worker (Clinical)
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Suffolk County (631) 261-4400
NELSON BARCELON MD
Anesthesiology
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Suffolk County (631) 261-4400
VAMC
General Acute Care Hospital
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Suffolk County (631) 261-4400
MS. SANDRA PAIGE SCHLESINGER LCSW-R
Social Worker
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Suffolk County (631) 261-4400
RICHARD THOMESEN NP
Nurse Practitioner (Psychiatric/Mental Health)
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Suffolk County (631) 261-4400
MR. JOSEPH LAWRENCE MAGLIULO
Pharmacist
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Suffolk County (631) 261-4400
ANNE LETITIA GUTTING OTR MACHT
Occupational Therapist
79 MIDDLEVILLE RD
NORTHPORT, NY 11768
Suffolk County (631) 261-4400

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 Marissa Fielstein's NPI number?

The NPI number for Marissa Fielstein is 1619383668. It was assigned to this individual provider in the NPPES registry on July 9, 2014.

Where is Marissa Fielstein located?

Marissa Fielstein practices at 79 Middleville Rd, Northport, NY 11768. The listed phone number is (631) 261-4400.

What is Marissa Fielstein's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Marissa Fielstein was last updated on July 9, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.