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

Dr. David E Harnois, D.C.

Chiropractor in Tewksbury, MA · enumerated 2006 · practices at A New Beginning Pastoral Counseling Inc.

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

National Provider Identifier

1801847876

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Registry record

Entity type Individual (Type 1)

Name Dr. David E Harnois

Credential D.C.

Sex Male

Practice address Tewksbury, MA, 01876

Phone (978) 657-6009

Fax (978) 657-4326

Enumeration date May 15, 2006

Last updated in NPPES Aug 19, 2014

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 893 (MA) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
351058	Other	MA	HARVARD PILGRIM
HAY35797	Other	MA	BCBS
723048	Other	MA	TUFTS

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 David Harnois?

The National Provider Identifier (NPI) for David Harnois is 1801847876, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Harnois practice?

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

Other providers at this practice address

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Jana Heller General Practice Dentistry · Tewksbury, MA NPI 1811907868 A New Beginning Pastoral Counseling Inc Clinical Psychologist · Tewksbury, MA NPI 1477908572

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-19.