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DR. MATTHEW JAMES MCNICHOLAS DC
NPI 1912412636
Chiropractor in Groton, CT

Active since December 04, 2017
565 LONG HILL RD, GROTON, CT 06340(860) 448-2225(860) 446-0784 Get Directions Write a Review

NPPES record last updated: January 11, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 11, 2022, Dec 4, 2017 (2 updates tracked since 2017).

About Dr. Matthew James Mcnicholas Dc NPPES

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

DR. MATTHEW JAMES MCNICHOLAS DC (NPI 1912412636) is an individual chiropractor in Groton, Connecticut, licensed in Connecticut (2043) and active in the NPI registry since December 2017. He is a graduate of Other (2016).

NPPES Registry Identity

NPI1912412636
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. MATTHEW JAMES MCNICHOLASCredential: DC
Location Address565 LONG HILL RDGroton, CT 06340-4166
Mailing Address565 Long Hill RdGroton, CT 06340-4166 · (860) 448-2225 · Fax (860) 446-0784
Phone(860) 448-2225
Fax(860) 446-0784
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateDecember 4, 2017
Last NPPES UpdateJanuary 11, 20222 updates tracked since enumeration
NPPES CertifiedDecember 17, 2021
✔ NPI 1912412636 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in CT · 2043
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.
565 LONG HILL RD, Groton, CT 06340
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Matthew James Mcnicholas Dc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1456706845
PECOS Enrollment IDI20231004002133

Medicare Billing Reassignment

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

Advanced Back And Neck Care Center LLC
Same address
Chiropractor
565 LONG HILL RD
Groton, CT 06340
  • Reassigned Medicare billing, Connecticut enrollment
  • 5 clinicians in this Medicare group
NPI 1588680078 (860) 448-2225

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

Other Providers at the Same Location NPPES 12

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

DR. WARREN M GERUSO DC
Chiropractor
565 LONG HILL RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 448-2225
JENNIFER MULLANE ARMSTRONG PT
Physical Therapist
565 LONG HILL RD, STE 3
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 445-0756
DIAGNOSTIC IMAGING SERVICES OF CT, LLC
Radiology (Diagnostic Radiology)
565 LONG HILL RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (203) 949-2700
MRS. LYNN BORZILLO D.A., L.AC.
Acupuncturist
565 LONG HILL RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 448-2225
DR. STEVEN B NEMEROFF DC
Naturopath
565 LONG HILL RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 448-2225
COASTAL IMAGING LLC
Radiology (Diagnostic Radiology)
565 LONG HILL RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 448-6094
DR. CAROLYN JONNE GROVES N.D.
Naturopath
565 LONG HILL RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 448-2225
DANIEL JAMES MASCARO
Chiropractor
565 LONG HILL RD
GROTON, CT 06340
Southeastern Connecticut Planning Region (860) 501-8863

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 Matthew Mcnicholas's NPI number?

The NPI number for Matthew Mcnicholas is 1912412636. It was assigned to this individual provider in the NPPES registry on December 4, 2017.

Where is Matthew Mcnicholas located?

Matthew Mcnicholas practices at 565 Long Hill Rd, Groton, CT 06340. The listed phone number is (860) 448-2225.

What is Matthew Mcnicholas's specialty?

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

Is Matthew Mcnicholas enrolled in Medicare?

Yes. Matthew Mcnicholas is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Matthew Mcnicholas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Mcnicholas reassigns Medicare benefits to Advanced Back And Neck Care Center LLC (Groton, 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 Matthew Mcnicholas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Matthew Mcnicholas was last updated on January 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.