Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen Seltzer, LICSW

Clinical Social Worker in Great Barrington, MA · enumerated 2007.

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

National Provider Identifier

1942330774

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Registry record

Entity type Individual (Type 1)

Name Karen Seltzer

Credential LICSW

Sex Female

Practice address 150 Castle Hill Ave, Great Barrington, MA, 01230

Phone (413) 528-6089

Fax (413) 528-3579

Enumeration date Mar 7, 2007

Last updated in NPPES Jun 3, 2013

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 111106 (MA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Karen Seltzer?

The National Provider Identifier (NPI) for Karen Seltzer is 1942330774, a Type 1 (individual) record in the CMS NPPES registry.

Where does Karen Seltzer practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-03.