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

Mr. John J Demanche, BCBA

Behavior Analyst in Winchendon, MA · enumerated 2010.

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

National Provider Identifier

1821303306

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. John J Demanche

Credential BCBA

Sex Male

Practice address Winchendon, MA, 01475

Phone (978) 297-4301

Enumeration date Aug 9, 2010

Last updated in NPPES Aug 9, 2010

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

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-05-2633 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 John Demanche?

The National Provider Identifier (NPI) for John Demanche is 1821303306, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Demanche practice?

The practice location on file with NPPES is in Winchendon, 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 2010-08-09.