Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ariel Rubinstein, LMSW

Social Worker in Northport, NY · enumerated 2009.

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

National Provider Identifier

1538496492

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Registry record

Entity type Individual (Type 1)

Name Ariel Rubinstein

Credential LMSW

Sex Female

Practice address 79 Middleville Rd, Northport, NY, 11768

Phone (631) 261-4400

Fax (631) 266-6029

Enumeration date Nov 12, 2009

Last updated in NPPES Jul 8, 2014

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 084749 (NY) Primary

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

What is the NPI number for Ariel Rubinstein?

The National Provider Identifier (NPI) for Ariel Rubinstein is 1538496492, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ariel Rubinstein practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-08.