Doctor profile · Federal record
Dr. David Harnois, D.C.
Chiropractor (CMS: Chiropractic) · Tewksbury, MA
- NPI 1801847876
- Accepts Medicare
- 44 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2500 Main St
Tewksbury, MA 018763188
(978) 657-6009
fax (978) 657-4326
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- August 19, 2014
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 111N00000X — NUCC code
- State license (1)
- Massachusetts #893
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1801847876. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
855
Distinct HCPCS
2
Medicare allowed
$34,479
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
98941 |
Chiropractic manipulative treatment, 3-4 spinal regions | 651 | 48 | $43 | |
98940 |
Chiropractic manipulative treatment, 1-2 spinal regions | 204 | 13 | $30 |
In context: peer comparison
Among 2 peers in Tewksbury Chiropractor, average services per provider: 401. This provider delivers 2.1× the peer median.Frequently asked questions
What is Dr. David Harnois's medical specialty?
Dr. David Harnois practices Chiropractor in Tewksbury, MA.
Where does Dr. David Harnois practice?
Dr. David Harnois practices at 2500 Main St, Tewksbury, MA 018763188. Office phone: 9786576009.
What is Dr. David Harnois's NPI?
Dr. David Harnois's National Provider Identifier (NPI) is 1801847876, issued by NPPES.
Does Dr. David Harnois accept Medicare assignment?
Yes. Dr. David Harnois accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Harnois commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941); Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940). Source: CMS Medicare Physician & Other Practitioners file.