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

Ms. Esther L Klein, LCSW

Q: What is the NPI number for Esther Klein?

The National Provider Identifier (NPI) for Esther Klein is 1528080918, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Social Worker in Safety Harbor, FL · enumerated 2006.

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

National Provider Identifier

1528080918

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Registry record

Entity type Individual (Type 1)

Name Ms. Esther L Klein

Credential LCSW

Sex Female

Practice address Safety Harbor, FL, 34695

Phone (727) 726-5049

Fax (866) 469-3880

Enumeration date Jul 24, 2006

Last updated in NPPES Mar 26, 2025

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 SW782 (FL) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
7735105	Other	FL	AETNA BEHAVIORAL HEALTH
162533100	Other	FL	US DEPARTMENT OF LABOR
Z2437	Other	FL	BLUE SHIELD OF FLORIDA

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

What is the NPI number for Esther Klein?

The National Provider Identifier (NPI) for Esther Klein is 1528080918, a Type 1 (individual) record in the CMS NPPES registry.

Where does Esther Klein practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-26.