Marc John Czarnowski, D.M.D.
General Practice Dentistry · Mansfield Center, CT
Marc John Czarnowski, D.M.D. is a general practice dentistry with a practice address in Mansfield Center, Connecticut, and NPI 1275650699, issued on Mar 22, 2007. Check the license (Connecticut 6192, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marc John Czarnowski
- Credential
- D.M.D.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 6192 CT
Self-reported in NPPES; status is on the state search - Practice location
- 10 Higgins Hwy, Mansfield Center, CT 06250
- Phone
- (860) 456-2906
- Enumerated
- Mar 22, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 1,731 in Connecticut → Look up another NPI →
Also registered at 10 Higgins Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Campbell, LPCProfessional Counselor1437609757
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- Scott Gregorc, D.C.Chiropractor1609902147
- Donald Grippo, D.D.S.Oral and Maxillofacial Surgery (Dentist)1881665834
- Vera Killian, PTPhysical Therapist1629150644
- Ralph Laguardia, M.D.Internal Medicine Physician1902805781
Verify Marc John Czarnowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 6192Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average general practice dentistry in 2024
82 Medicare Part D claims for 66 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin64 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $15.69
1 payment: food and beverage; the largest payer was Ultradent Products Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Marc John Czarnowski among 1,731 general practice dentistry records in Connecticut
Marc John Czarnowski, D.M.D. is one of 1,731 general practice dentistry records with a practice address in Connecticut. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 31% of them.
- NPI issued2007 · 31% of these records are older, 39% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 80% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 general practice dentistry records list a practice address in Mansfield Center
They are 6 of the 295 NPPES records with a practice address in Mansfield Center, and 1,731 general practice dentistry records in Connecticut.
All 1,731 in Connecticut → Every provider in Mansfield Center → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Demitria Estrada, DMDMansfield Center, CT 062501922620707
- Verena HannaMansfield Center, CT 062501487406864
- Donna Rosen, D.M.D.Mansfield Center, CT 062501659592749
- Robert Rosner, D.M.D.Mansfield Center, CT 062501144343971
- Deborah Wing, D.D.S.Mansfield Center, CT 062501457572539
- James Bussiere, DMDHebron, CT 062481841348554
- Jeffrey Kraman, D.D.S.Hebron, CT 062481518082726
- Donald Rossler, DMDHebron, CT 062481942385521
Common questions
What is Marc John Czarnowski, D.M.D.'s NPI number?
Marc John Czarnowski, D.M.D.'s National Provider Identifier (NPI) is 1275650699, issued on Mar 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marc John Czarnowski, D.M.D. located?
The NPPES record lists a practice address at 10 Higgins Hwy, Mansfield Center, CT, 06250. Phone: (860) 456-2906. Providers update this record themselves, so call before visiting.
How can I verify Marc John Czarnowski, D.M.D.'s license?
NPPES lists Connecticut license number 6192, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Marc John Czarnowski, D.M.D. prescribe under Medicare Part D?
In 2024, Marc John Czarnowski, D.M.D. had 82 Medicare Part D claims for 66 beneficiaries; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions 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.