Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rubin Mendlowitz, LMSW

Social Worker in Spring Valley, NY · enumerated 2017.

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

National Provider Identifier

1336652155

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Registry record

Entity type Individual (Type 1)

Name Rubin Mendlowitz

Credential LMSW

Sex Male

Practice address 295 W Route 59, Spring Valley, NY, 10977

Phone (845) 533-3227

Fax (845) 746-9761

Enumeration date Nov 15, 2017

Last updated in NPPES Nov 15, 2017

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers 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

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.

What specialty is Rubin Mendlowitz?

Rubin Mendlowitz 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-15.