John Mackenzie Keenan, D.C.
Chiropractor · Watertown, NY
John Mackenzie Keenan, D.C. is a chiropractor with a practice address in Watertown, New York, and NPI 1699944744, issued on Feb 22, 2008. Check the license (New York X005776-1, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Mackenzie Keenan
- Credential
- D.C.
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- X005776-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 718 Leray St, Watertown, NY 13601
- Phone
- (315) 788-5433
- Enumerated
- Feb 22, 2008
- Record last updated
- Feb 22, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (315) 788-5433
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 4,573 in New York → Look up another NPI →
Verify John Mackenzie Keenan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license X005776-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Mackenzie Keenan among 4,573 chiropractor records in New York
John Mackenzie Keenan, D.C. is one of 4,573 chiropractor records with a practice address in New York. 13% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 63% of them.
- NPI issued2008 · 63% of these records are older, 33% newer
- In a Medicare fileNo · 13% of these records are
- In the CMS Doctors and Clinicians fileNo · 36% of these records are
- Record last updated2008 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Chiropractor providers in New York
There are 4,573 chiropractor records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 4,573 in New York → Every provider in Watertown → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Michael Demianenko, DCWatertown, NY 136011831262724
- William Dingman, DCWatertown, NY 136011306807284
- Jerica Douglas, D.C.Watertown, NY 136011548507437
- Mandy Durham-Vassallo, D.C.Watertown, NY 136011528008240
- Rebecca Keshmiri, D.C.Watertown, NY 136011336208883
- Tomm Maxon, D.C.Watertown, NY 136011811967201
- Dale Porter, D.C.Watertown, NY 136011457406886
- Larry Silverstein, DCWatertown, NY 136011588751242
Common questions
What is John Mackenzie Keenan, D.C.'s NPI number?
John Mackenzie Keenan, D.C.'s National Provider Identifier (NPI) is 1699944744, issued on Feb 22, 2008. An NPI identifies a provider in billing; it is not a license.
Where is John Mackenzie Keenan, D.C. located?
The NPPES record lists a practice address at 718 Leray St, Watertown, NY, 13601. Phone: (315) 788-5433. Providers update this record themselves, so call before visiting.
How can I verify John Mackenzie Keenan, D.C.'s license?
NPPES lists New York license number X005776-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.