Matthew James McNicholas, DC
Chiropractor · Groton, CT
Matthew James McNicholas, DC is a chiropractor with a practice address in Groton, Connecticut, and NPI 1912412636, issued on Dec 4, 2017. Check the license (Connecticut 2043, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Matthew James McNicholas
- Credential
- DC
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- 2043 CT
Self-reported in NPPES; status is on the state search - Practice location
- 565 Long Hill RD, Groton, CT 06340
- Phone
- (860) 448-2225
- Enumerated
- Dec 4, 2017
- Record last updated
- Jan 11, 2022
- Fax
- (860) 446-0784
- Medicare enrollment
- Enrolled (PECOS I20231004002133); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 907 in Connecticut → Look up another NPI →
Also registered at 565 Long Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Armstrong, PTPhysical Therapist1063466779
- Lynn Borzillo, D.A., L.AC.Acupuncturist1245260330
- Warren Geruso, DCChiropractor1043236599
- Carolyn Groves, N.D.Naturopath1467624189
- Daniel MascaroChiropractor1508393489
- Joseph Mascaro, DCChiropractor1770503492
Verify Matthew James McNicholas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 2043Check 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
- Advanced Back And Neck Care Center LLCGroton, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew James McNicholas among 907 chiropractor records in Connecticut
Matthew James McNicholas, DC 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 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 17% newer
- In a Medicare fileYes · 17% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2016 · median 2000 among the 387 with a school on file
- Record last updated2022 · 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).
18 chiropractor records list a practice address in Groton
They are 18 of the 734 NPPES records with a practice address in Groton, and 907 chiropractor records in Connecticut.
All 907 in Connecticut → Every provider in Groton → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Sarah-Anne Bruno, DCGroton, CT 063401871785147
- Christopher Deveau, DCGroton, CT 063401487716866
- Michael Falk, DCGroton, CT 063401174638464
- Lynn Gagner, D.C.Groton, CT 063401801086889
- Warren Geruso, DCGroton, CT 063401043236599
- Steven Grob, D.C.Groton, CT 063401861415556
- Edward Hutter, D.C.Groton, CT 063401073679569
- Joseph Mascaro, DCGroton, CT 063401770503492
Common questions
What is Matthew James McNicholas, DC's NPI number?
Matthew James McNicholas, DC's National Provider Identifier (NPI) is 1912412636, issued on Dec 4, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Matthew James McNicholas, DC located?
The NPPES record lists a practice address at 565 Long Hill RD, Groton, CT, 06340. Phone: (860) 448-2225. Providers update this record themselves, so call before visiting.
How can I verify Matthew James McNicholas, DC's license?
NPPES lists Connecticut license number 2043, 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.