NPI Portal NPI Lookup & Verification

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

Mrs. Madeleine Kay Jacobson, LICSW

Mental Health Counselor in Newton Highlands, MA · enumerated 2007.

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

National Provider Identifier

1649469412

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Registry record

Entity type Individual (Type 1)
Name Mrs. Madeleine Kay Jacobson
Credential LICSW
Sex Female
Practice address Newton Highlands, MA, 02461
Enumeration date Oct 17, 2007
Last updated in NPPES Oct 17, 2007

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 1030563 (MA) Primary

Other identifiers

Identifier Type State Issuer
JAPO2473 Other MA BLUE CROSS/BS INDEMNITY

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

How do I verify Madeleine Jacobson's NPI record?
Cross-check NPI 1649469412 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1649469412 active?
Yes, as of the latest NPPES snapshot, NPI 1649469412 is active (record last updated 2007-10-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-17.