Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Karen Frances Seltzer, L-MSW

Social Worker in Glen Head, NY · enumerated 2008 · practices at First Steps Early Childhood Services, Inc..

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

National Provider Identifier

1821233081

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Registry record

Entity type Individual (Type 1)

Name Mrs. Karen Frances Seltzer

Credential L-MSW

Sex Female

Practice address 1a Chelmsford Dr, Glen Head, NY, 11545

Phone (516) 626-0317

Fax (516) 626-3174

Enumeration date Dec 2, 2008

Last updated in NPPES Dec 2, 2008

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 053446-1 (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

Where does Karen Seltzer practice?

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

What is the NPI number for Karen Seltzer?

The National Provider Identifier (NPI) for Karen Seltzer is 1821233081, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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First Steps Early Childhood Services, Inc. Early Intervention Provider Agency · Glen Head, NY NPI 1295979383

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-02.