James Donald Grenon, D.C.
Chiropractor · Cheshire, CT
James Donald Grenon, D.C. is a chiropractor with a practice address in Cheshire, Connecticut, and NPI 1659453249, issued on Oct 20, 2006. Check the license (Connecticut 000916, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Donald Grenon
- Credential
- D.C.
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- 000916 CT
Self-reported in NPPES; status is on the state search - Practice location
- 420 S Main St Lowr Level, Cheshire, CT 06410
- Phone
- (203) 272-4513
- Enumerated
- Oct 20, 2006
- Record last updated
- Jul 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (203) 699-8253
- Medicare enrollment
- Enrolled (PECOS I20120201000842); may accept Medicare assignment
- Medical or professional school
- Logan College Of Chiropractic, 1990
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 907 in Connecticut → Look up another NPI →
Also registered at 420 S Main St Lowr Level
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Ruddy, D.C.Chiropractor1558443150
Verify James Donald Grenon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 000916Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Alexander And Grenon Chiropractic Center PCCheshire, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Donald Grenon among 907 chiropractor records in Connecticut
James Donald Grenon, D.C. is one of 907 chiropractor records with a practice address in Connecticut. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 17% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1990 · median 2000 among the 387 with a school on file
- Record last updated2021 · 76% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 chiropractor records list a practice address in Cheshire
They are 12 of the 757 NPPES records with a practice address in Cheshire, and 907 chiropractor records in Connecticut.
All 907 in Connecticut → Every provider in Cheshire → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Christine Boiano, D.C.Cheshire, CT 064101750701728
- Thomas Clukey, D.C.Cheshire, CT 064101932142890
- Ariana Daurio, DCCheshire, CT 064101366916389
- Luigi Dirubba, D.C.Cheshire, CT 064101841384088
- Nicole Galiette, DCCheshire, CT 064101780796839
- Eric Kelly, DCCheshire, CT 064101811964810
- Theresa Levine, DCCheshire, CT 064101164592754
- Erik Reich, D.C.Cheshire, CT 064101194080036
Common questions
What is James Donald Grenon, D.C.'s NPI number?
James Donald Grenon, D.C.'s National Provider Identifier (NPI) is 1659453249, issued on Oct 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Donald Grenon, D.C. located?
The NPPES record lists a practice address at 420 S Main St Lowr Level, Cheshire, CT, 06410. Phone: (203) 272-4513. Providers update this record themselves, so call before visiting.
How can I verify James Donald Grenon, D.C.'s license?
NPPES lists Connecticut license number 000916, as entered by the provider. Search the Connecticut 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. Medicare files from data.cms.gov. 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.