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

Ms. Karen Morgenstern, LCSW, CASAC

Addiction (Substance Use Disorder) Counselor in Smithtown, NY · enumerated 2006.

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

National Provider Identifier

1265517973

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Registry record

Entity type Individual (Type 1)

Name Ms. Karen Morgenstern

Credential LCSW, CASAC

Sex Female

Practice address Smithtown, NY, 11787

Phone (631) 969-1212

Fax (631) 969-1212

Enumeration date Oct 25, 2006

Last updated in NPPES Sep 11, 2025

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 7105 (NY) Primary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License PR-039852-1 (NY) Secondary

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
01475410	Medicaid	NY	-

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

Is NPI 1265517973 active?

Yes, as of the latest NPPES snapshot, NPI 1265517973 is active (record last updated 2025-09-11).

How do I verify Karen Morgenstern's NPI record?

Cross-check NPI 1265517973 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Terry Greenberg Clinical Social Worker · Smithtown, NY NPI 1316055049

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.