Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Joan Sheff, MSW

Social Worker in Warwick, RI · enumerated 2005.

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

National Provider Identifier

1619951050

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Registry record

Entity type Individual (Type 1)

Name Mrs. Joan Sheff

Credential MSW

Sex Female

Practice address 1087 Warwick Ave, Warwick, RI, 02888

Phone (401) 461-6676

Fax (401) 461-3165

Enumeration date Nov 30, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License ISW00098 (RI) Primary

Other identifiers

Identifier	Type	State	Issuer
94504	Other	RI	BC/BS OF RI

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

What specialty is Joan Sheff?

Joan Sheff 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 2007-07-08.