NPI Portal NPI Lookup & Verification

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

Mrs. Joan Devins Weinstein, LCSW

Clinical Social Worker in Syosset, NY · enumerated 2010.

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

National Provider Identifier

1518271451

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Registry record

Entity type Individual (Type 1)
Name Mrs. Joan Devins Weinstein
Credential LCSW
Sex Female
Practice address Syosset, NY, 11791
Phone (516) 921-7171
Fax (516) 496-4958
Enumeration date Aug 3, 2010
Last updated in NPPES Aug 3, 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 PRO14852-1 (NY) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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

Is NPI 1518271451 active?
Yes, as of the latest NPPES snapshot, NPI 1518271451 is active (record last updated 2010-08-03).
How do I verify Joan Weinstein's NPI record?
Cross-check NPI 1518271451 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-03.