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DR. JAMES DONALD GRENON D.C.
NPI 1659453249
Chiropractor in Cheshire, CT

Active since October 20, 2006
420 S MAIN ST LOWR LEVEL, CHESHIRE, CT 06410(203) 272-4513(203) 699-8253 Get Directions Write a Review

NPPES record last updated: July 16, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. James Donald Grenon D.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JAMES DONALD GRENON D.C. (NPI 1659453249) is an individual chiropractor in Cheshire, Connecticut, licensed in Connecticut (000916) and active in the NPI registry since October 2006. He is a graduate of Logan College Of Chiropractic (1990).

NPPES Registry Identity

NPI1659453249
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. JAMES DONALD GRENONCredential: D.C.
Location Address420 S MAIN ST LOWR LEVELCheshire, CT 06410-3145
Mailing Address420 S Main St Lowr LevelCheshire, CT 06410-3145 · (203) 272-4513 · Fax (203) 699-8253
Phone(203) 272-4513
Fax(203) 699-8253
Sole ProprietorNo
Medical School CMSLogan College Of ChiropracticGraduated 1990
Enumeration DateOctober 20, 2006
Last NPPES UpdateJuly 16, 2021
NPPES CertifiedJuly 16, 2021
✔ NPI 1659453249 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in CT · 000916
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
420 S MAIN ST LOWR LEVEL, Cheshire, CT 06410
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James Donald Grenon D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6204875560
PECOS Enrollment IDI20120201000842

Medicare Billing Reassignment

Medicare enrollment records show James Grenon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Alexander And Grenon Chiropractic Center PC
0.4 mi
Chiropractor
677S MAIN ST
Cheshire, CT 06410
  • Reassigned Medicare billing, Connecticut enrollment
  • 2 clinicians in this Medicare group
NPI 1669674768 (203) 272-4513

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Chiropractic manipulative treatment, 1-2 spinal regions 98940
Chiropractic manipulative treatment focuses on adjusting your spine to improve your body's physical function. In this service, a chiropractor applies controlled force to 1-2 spinal regions. This helps to restore mobility and alleviate discomfort in those areas.
663 services36 patients

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DANIEL RUDDY D.C.
Chiropractor
420 S MAIN ST LOWR LEVEL
CHESHIRE, CT 06410
Naugatuck Valley Planning Region (203) 272-4513

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Grenon's NPI number?

The NPI number for James Grenon is 1659453249. It was assigned to this individual provider in the NPPES registry on October 20, 2006.

Where is James Grenon located?

James Grenon practices at 420 S Main St Lowr Level, Cheshire, CT 06410. The listed phone number is (203) 272-4513.

What is James Grenon's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is James Grenon enrolled in Medicare?

Yes. James Grenon is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for James Grenon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Grenon reassigns Medicare benefits to Alexander And Grenon Chiropractic Center PC (Cheshire, CT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Grenon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Grenon accept?

Health plans from Anthem Blue Cross and Blue Shield and Providence Health Plan list James Grenon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for James Grenon was last updated on July 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.