Mark S. Roisman, D.M.D.
Dentist · Westport, CT
Mark S. Roisman, D.M.D. is a dentist with a practice address in Westport, Connecticut, and NPI 1003947425, issued on Mar 8, 2007. Check the license (Connecticut 008100, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark S. Roisman
- Credential
- D.M.D.
- Primary taxonomy
- Dentist 122300000X
- License number
- 008100 CT
Self-reported in NPPES; status is on the state search - Practice location
- 225 Main St, Westport, CT 06880
- Phone
- (203) 227-6338
- Enumerated
- Mar 8, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 225 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joyce Colburn, LCSWClinical Social Worker1922468198
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- Carrie Gordon-Land, MA, LPCProfessional Counselor1932189891
- Jonathan Kantor, DCRehabilitation Chiropractor1710005061
- Jennifer Lee, M.D.Child & Adolescent Psychiatry Physician1730390089
- Barbara Rassow, DC CNMAdvanced Practice Midwife1699893958
Verify Mark S. Roisman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 008100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average dentist in 2024
15 Medicare Part D claims for 14 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
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.
Dentist providers in Connecticut
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- Lindsay Albino, DMDNorth Haven, CT1871154476
Common questions
What is Mark S. Roisman, D.M.D.'s NPI number?
Mark S. Roisman, D.M.D.'s National Provider Identifier (NPI) is 1003947425, issued on Mar 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark S. Roisman, D.M.D. located?
The NPPES record lists a practice address at 225 Main St, Westport, CT, 06880. Phone: (203) 227-6338. Providers update this record themselves, so call before visiting.
How can I verify Mark S. Roisman, D.M.D.'s license?
NPPES lists Connecticut license number 008100, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Mark S. Roisman, D.M.D. prescribe under Medicare Part D?
In 2024, Mark S. Roisman, D.M.D. had 15 Medicare Part D claims for 14 beneficiaries; the average among dentist prescribers was 86. 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.