NPPES file of Aug 9, 2026

Marcus Cowan, DMD

General Practice Dentistry · Hudson, MA

Marcus Cowan, DMD is a general practice dentistry with a practice address in Hudson, Massachusetts, and NPI 1114458635, issued on Mar 26, 2017. Check the license (Massachusetts DN1859760, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114458635
Name
Marcus Cowan
Credential
DMD
Primary taxonomy
General Practice Dentistry 1223G0001X
License numbers
DN1859760 MA
DN015427 GA
Self-reported in NPPES; status is on the state search
Practice location
234 Washington St, Hudson, MA 01749
Phone
(978) 819-4034
Enumerated
Mar 26, 2017
Record last updated
Nov 7, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 234 Washington St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Moira Carter, FNP-BCFamily Nurse Practitioner1487096616
  2. Loan Chau, FNP-BCFamily Nurse Practitioner1699247957
  3. Victoria ExarhopoulosPharmacist1922603513
  4. Laurel Ginder, NP-CFamily Nurse Practitioner1184746547
  5. Hannah GoddardPharmacist1962113928
  6. Geralda Louis-Isma, NPFamily Nurse Practitioner1114614617

Verify Marcus Cowan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license DN1859760
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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78% fewer Medicare Part D claims than the average general practice dentistry in 2024

18 Medicare Part D claims for 11 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Marcus Cowan18
  2. Specialty average83

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: $154.07

1 payment: food and beverage; the largest payer was Keystone Dental 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.

  1. Marcus Cowan$154.07
  2. Specialty average$597.01

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Marcus Cowan among 3,489 general practice dentistry records in Massachusetts

Marcus Cowan, DMD is one of 3,489 general practice dentistry records with a practice address in Massachusetts. 58% 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 78% of them.

  • NPI issued2017 · 78% of these records are older, 20% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2024 · 77% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 general practice dentistry records list a practice address in Hudson

They are 8 of the 303 NPPES records with a practice address in Hudson, and 3,489 general practice dentistry records in Massachusetts.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Matthew Gigliotti, DMDHudson, MA 017491073181319
  2. Thomas Mulroy, DMDHudson, MA 017491568566198
  3. David Paquette, D.M.D.Hudson, MA 017491215015649
  4. Roger Paquette, D.M.D.Hudson, MA 017491043427024
  5. Nicole Paquette, D.M.D.Hudson, MA 017491952518938
  6. Marjorie Rapose, DMDHudson, MA 017491871920348
  7. Casmer Ziemlak, D.D.S.Hudson, MA 017491023014040
  8. Gina Belsito, D.M.D.Hopkinton, MA 017481285756676

Common questions

What is Marcus Cowan, DMD's NPI number?

Marcus Cowan, DMD's National Provider Identifier (NPI) is 1114458635, issued on Mar 26, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Marcus Cowan, DMD located?

The NPPES record lists a practice address at 234 Washington St, Hudson, MA, 01749. Phone: (978) 819-4034. Providers update this record themselves, so call before visiting.

How can I verify Marcus Cowan, DMD's license?

NPPES lists Massachusetts license number DN1859760, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Marcus Cowan, DMD prescribe under Medicare Part D?

In 2024, Marcus Cowan, DMD had 18 Medicare Part D claims for 11 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.