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

Mrs. Rosalyn F Klein, LCSW

Clinical Social Worker in Orange, CT · enumerated 2007.

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

National Provider Identifier

1649302993

Verified

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Registry record

Entity type Individual (Type 1)

Name Mrs. Rosalyn F Klein

Credential LCSW

Sex Female

Practice address Orange, CT, 06477

Phone (203) 874-2082

Enumeration date Mar 12, 2007

Last updated in NPPES Jul 9, 2007

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 001015 (CT) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Rosalyn Klein practice?

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

What is the NPI number for Rosalyn Klein?

The National Provider Identifier (NPI) for Rosalyn Klein is 1649302993, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.