Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MARY ELIZABETH WINSLOW MARSH
NPI 1902721871
Social Worker in East Sandwich, MA

Q: What is Mary Winslow Marsh's NPI number?

The NPI number for Mary Winslow Marsh is 1902721871. It was assigned to this individual provider in the NPPES registry on August 11, 2026.

Q: What is Mary Winslow Marsh's specialty?

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

Active since August 11, 2026

311 SERVICE RD, EAST SANDWICH, MA 02537(508) 833-4120 Get Directions Write a Review

NPPES record added: August 11, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Mary Elizabeth Winslow Marsh NPPES

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

MARY ELIZABETH WINSLOW MARSH (NPI 1902721871) is an individual social worker in East Sandwich, Massachusetts, licensed in Massachusetts (LCSW218318) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1902721871

Entity TypeIndividualFemale

Primary Taxonomy104100000X

Provider Legal NameMARY ELIZABETH WINSLOW MARSH

Location Address311 SERVICE RDEast Sandwich, MA 02537-1370

Mailing Address311 Service RdEast Sandwich, MA 02537-1370 · (508) 833-4120

Phone(508) 833-4120

Sole ProprietorNo

Enumeration DateAugust 11, 2026

NPPES CertifiedAugust 11, 2026

✔ NPI 1902721871 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 MA · LCSW218318

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.

311 SERVICE RD, East Sandwich, MA 02537

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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.

JENNIFER BENOIT MS, OTR/L

Occupational Therapist

311 SERVICE RD
EAST SANDWICH, MA 02537

Barnstable County (508) 648-0276

DR. JOHN STURGES ALLEN PH.D.

Psychologist (Clinical)

311 SERVICE RD
EAST SANDWICH, MA 02537

Barnstable County (508) 833-4148

SCOTT ABRAMSON MD PC

Physical Medicine & Rehabilitation

311 SERVICE RD
EAST SANDWICH, MA 02537

Barnstable County (508) 833-4000

REHABILITATION HOSPITAL OF THE CAPE AND ISLANDS, CORPORATION

Rehabilitation Hospital

311 SERVICE RD
E SANDWICH, MA 02537

Barnstable County (508) 833-4000

SHERRI TUPPER MD LLC

Internal Medicine

311 SERVICE RD
E SANDWICH, MA 02537

Barnstable County (508) 833-4160

PAULA JOYCE PT

Physical Therapist

311 SERVICE RD
EAST SANDWICH, MA 02537

Barnstable County (508) 833-4141

JILL KATHLEEN O'BRIEN LICSW

Social Worker (Clinical)

311 SERVICE RD, SPAULDING REHAB HOSPITAL CAPE COD
E. SANDWICH, MA 02537

Barnstable County (508) 833-4125

REHABILITATION HOSPITAL OF THE CAPE AND ISLANDS CORPORATION

Hospitalist

311 SERVICE RD
EAST SANDWICH, MA 02537

Barnstable County (508) 833-4000

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 Mary Winslow Marsh's NPI number?

The NPI number for Mary Winslow Marsh is 1902721871. It was assigned to this individual provider in the NPPES registry on August 11, 2026.

Where is Mary Winslow Marsh located?

Mary Winslow Marsh practices at 311 Service Rd, East Sandwich, MA 02537. The listed phone number is (508) 833-4120.

What is Mary Winslow Marsh'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 Mary Winslow Marsh was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.