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

Elizabeth Findlay Demontigny, ED.S, BCBA

Behavior Analyst in Lunenburg, MA · enumerated 2017.

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

National Provider Identifier

1679019723

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Registry record

Entity type Individual (Type 1)

Name Elizabeth Findlay Demontigny

Credential ED.S, BCBA

Sex Female

Practice address Lunenburg, MA, 01462

Phone (978) 790-5793

Fax (978) 867-0291

Enumeration date Jan 13, 2017

Last updated in NPPES Feb 22, 2024

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

Taxonomy & licenses

103TS0200X School Psychologist Behavioral Health & Social Service Providers · License 467436 (MA) Secondary

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1546 (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

Where does Elizabeth Demontigny practice?

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

What is the NPI number for Elizabeth Demontigny?

The National Provider Identifier (NPI) for Elizabeth Demontigny is 1679019723, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-22.