Doctor profile · Federal record
Dr. Peter Knowles, D.C.
Chiropractor (CMS: Chiropractic) · Machias, ME
- NPI 1992847180
- Accepts Medicare
- 45 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
19 E Main St
Machias, ME 046541201
(207) 255-8001
fax (207) 255-8001
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 111N00000X — NUCC code
- State license (1)
- Maine #CR581
- Medicaid
- ME #112990099
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1992847180. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
433
Distinct HCPCS
2
Medicare allowed
$15,470
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
98941 |
Chiropractic manipulative treatment, 3-4 spinal regions | 353 | 59 | $38 | |
98940 |
Chiropractic manipulative treatment, 1-2 spinal regions | 80 | 11 | $26 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 216. This provider delivers 2.0× the peer median.Frequently asked questions
What is Dr. Peter Knowles's medical specialty?
Dr. Peter Knowles practices Chiropractor in Machias, ME.
Where does Dr. Peter Knowles practice?
Dr. Peter Knowles practices at 19 E Main St, Machias, ME 046541201. Office phone: 2072558001.
What is Dr. Peter Knowles's NPI?
Dr. Peter Knowles's National Provider Identifier (NPI) is 1992847180, issued by NPPES.
Does Dr. Peter Knowles accept Medicare assignment?
Yes. Dr. Peter Knowles accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Knowles 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.