Marc John Czarnowski, DMD
- Part D claims, 2024
- 82
- Industry payments
- $25
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 10 Higgins Hwy Ste 1 Suite 1, Mansfield Center, CT 06250-1437
- Practice phone
- Call (860) 456-2906
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mansfield Ct Dental
Dental practice · Mansfield Center, Connecticut
Find Marc Czarnowski's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Marc John Czarnowski is a general practice dentistry in Willimantic, Connecticut
Marc Czarnowski practices at Mansfield Ct Dental in Mansfield Center, Connecticut.
Marc Czarnowski's NPI, 1275650699, was assigned on March 22, 2007. Marc Czarnowski holds Connecticut license 6192.
- NPI
- 1275650699NPI Registry (opens in a new tab)
- NPI enumeration date
- March 22, 2007
- NPI status
- Active
- Practice phone
- (860) 456-2906
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marc John Czarnowski practices in Mansfield Center and Willimantic
Marc Czarnowski's primary practice is Mansfield Ct Dental, at 10 Higgins Hwy Ste 1 Suite 1, Mansfield Center, CT 06250-1437. The practice phone is (860) 456-2906. The NPI Registry lists Marc Czarnowski's practice address as 112 Mans Field Ave, Willimantic, CT 06226.
- Mansfield Ct DentalPrimary10 Higgins Hwy Ste 1 Suite 1, Mansfield Center, CT 06250-1437Phone(860) 456-2906
- NPI Registry address112 Mans Field Ave, Willimantic, CT 06226 · Capitol County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Marc John Czarnowski is affiliated with 1 site of care and 1 medical group
Marc Czarnowski's primary practice is Mansfield Ct Dental in Mansfield Center, Connecticut. Dmand AI also links Marc Czarnowski to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Marc John Czarnowski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marc Czarnowski practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mansfield Ct Dental | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Marc John Czarnowski is one of 779 general practice dentistrys in Connecticut
General practice is Marc Czarnowski's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. Marc Czarnowski is licensed in Connecticut.
Specialties and state licenses
- General practice dentistry, ConnecticutPrimary
General practice dentistrys near Marc Czarnowski
Counts of general practice dentistrys with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Marc John Czarnowski's patients have a median age of 18
Across all payers, Dmand AI patient panel data puts Marc Czarnowski's median patient age at 18, with 100% women.
Marc Czarnowski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 18
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Marc John Czarnowski wrote 82 Medicare Part D claims in 2024
In 2024, Marc Czarnowski wrote 82 Medicare Part D claims for 66 patients. 96% of them were for generic drugs.
Marc Czarnowski's Part D claims by kind of drug, 2024
- Generic79 claims96%
- Brand-name and other3 claims4%
Drug classes CMS tracks in Marc Czarnowski's Part D claims, 2024
- Antibiotics89%73 of 82 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Marc John Czarnowski received $25 in industry payments in 2025
CMS Open Payments shows 1 general payment to Marc Czarnowski from 1 drug or device company in 2025. Education make up the largest share, 100% of the total. Straumann USA LLC paid the most, $25.
Companies that paid Marc Czarnowski the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marc John Czarnowski's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Marc John Czarnowski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marc John Czarnowski's NPI number?
Marc John Czarnowski's NPI number is 1275650699. It was assigned on March 22, 2007, and it is active in the NPI Registry.
What does Marc John Czarnowski specialize in?
Marc John Czarnowski is a general practice dentistry in Willimantic, Connecticut. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does Marc John Czarnowski practice?
Marc Czarnowski practices at 10 Higgins Hwy Ste 1 Suite 1, Mansfield Center, CT 06250-1437. Marc Czarnowski also practices at 112 Mans Field Ave, Willimantic, CT 06226. Marc Czarnowski's primary practice is Mansfield Ct Dental in Mansfield Center, Connecticut. Dmand AI also links Marc Czarnowski to 1 medical group.
What is Marc John Czarnowski's office phone number?
The practice phone on file for Marc Czarnowski is (860) 456-2906.
What is Marc John Czarnowski's medical license number?
Marc Czarnowski holds Connecticut license 6192.
Has Marc John Czarnowski received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Marc Czarnowski from 1 company from 2025 to 2025. The largest total came from Straumann USA LLC.
How long has Marc John Czarnowski been practicing?
Marc Czarnowski's NPI was assigned in 2007.
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