Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Ellen E. Nigrosh, PH.D.

Clinical Social Worker in South Hadley, MA · enumerated 2006.

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

National Provider Identifier

1306948831

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Registry record

Entity type Individual (Type 1)

Name Dr. Ellen E. Nigrosh

Credential PH.D.

Sex Female

Practice address South Hadley, MA, 01075

Phone (413) 539-9731

Enumeration date Sep 4, 2006

Last updated in NPPES Nov 13, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LICSW 104765 (MA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
14838	Other	MA	HEALTH NEW ENGLAND
793786	Other	MA	TUFTS HEALTH PLAN

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Ellen Nigrosh practice?

The practice location on file with NPPES is in South Hadley, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Ellen Nigrosh?

The National Provider Identifier (NPI) for Ellen Nigrosh is 1306948831, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Barry Nigrosh Clinical Psychologist · South Hadley, MA NPI 1356453070

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-13.