NPI Portal NPI Lookup & Verification

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

Mrs. Arlene S. Klein, RPT, M.S.

Pediatric Physical Therapist in Port Washington, NY · enumerated 2010.

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

National Provider Identifier

1114230612

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Registry record

Entity type Individual (Type 1)
Name Mrs. Arlene S. Klein
Credential RPT, M.S.
Sex Female
Practice address Port Washington, NY, 11050
Phone (516) 883-2883
Enumeration date Jul 26, 2010
Last updated in NPPES Jul 26, 2010

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

Taxonomy & licenses

2251P0200X Pediatric Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 005079 (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 Arlene Klein?
The National Provider Identifier (NPI) for Arlene Klein is 1114230612, a Type 1 (individual) record in the CMS NPPES registry.
Where does Arlene Klein practice?
The practice location on file with NPPES is in Port Washington, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-26.