NPPES file of Aug 9, 2026

John Thomas Duell, M.D.

Clinical Cardiac Electrophysiology Physician · Dartmouth, MA

John Thomas Duell, M.D. is a clinical cardiac electrophysiology physician with a practice address in Dartmouth, Massachusetts, and NPI 1598994261, issued on Jul 2, 2009. Check the license (Massachusetts 266970, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1598994261
Name
John Thomas Duell
Credential
M.D.
Primary taxonomy
Clinical Cardiac Electrophysiology Physician 207RC0001X
License number
266970 MA
Self-reported in NPPES; status is on the state search
Practice location
535 Faunce Corner RD, Dartmouth, MA 02747
Phone
(508) 996-3991
Enumerated
Jul 2, 2009
Record last updated
Apr 24, 2023
Medicare enrollment
Enrolled (PECOS I20160829001015); may accept Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2009
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 535 Faunce Corner RD

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

  1. Erica Ahaesy, FNPFamily Nurse Practitioner1568891620
  2. Debby Almeida, MDFamily Medicine Physician1134289127
  3. Jean AmorePhysician Assistant1932082963
  4. Sharon Anderson, M.S., CCC-AAudiologist1083864110
  5. Luiza Arbain, PHARMD.Pharmacist1245232099
  6. Selina AvelinoAdult Health Nurse Practitioner1831839059

Verify John Thomas Duell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 266970
    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
Open 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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2.4 times the Medicare Part D claims of the average clinical cardiac electrophysiology physician in 2024

4,139 Medicare Part D claims for 641 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. John Duell4,139
  2. Specialty average1,710

Most prescribed

  1. Eliquis653 claims
  2. Metoprolol Succinate603 claims
  3. Furosemide317 claims
  4. Amiodarone Hcl247 claims
  5. Xarelto207 claims
  6. Amlodipine Besylate203 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: $554.00

23 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Duell$554
  2. Specialty average$10,651

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

Bills Medicare through one group practice

  1. Lifespan Physician Group OF Massachusetts IncDartmouth, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John Thomas Duell among 116 clinical cardiac electrophysiology physician records in Massachusetts

John Thomas Duell, M.D. is one of 116 clinical cardiac electrophysiology physician records with a practice address in Massachusetts. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 61% of them.

  • NPI issued2009 · 61% of these records are older, 34% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 80% of these records are
  • Graduated2009 · median 2002 among the 93 with a school on file
  • Record last updated2023 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Cardiac Electrophysiology Physician providers in Massachusetts

There are 116 clinical cardiac electrophysiology physician records in Massachusetts.

The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes

  1. Lyudmila Aurora, D.O.Fall River, MA 027211447608385
  2. Christopher Clyne, MDFall River, MA 027201306857081
  3. Nitesh Sood, MDFall River, MA 027201124299755
  4. Peter Bourell, M.D.Hyannis, MA 026011487975124
  5. Peter Friedman, M.D.Hyannis, MA 026011841398252
  6. Saagar MahidaBoston, MA 024461083000616
  7. Begona Benito Villabriga, MDBoston, MA 022151528376464
  8. Allon Eyal, MDBoston, MA 022151568983179

Common questions

What is John Thomas Duell, M.D.'s NPI number?

John Thomas Duell, M.D.'s National Provider Identifier (NPI) is 1598994261, issued on Jul 2, 2009. An NPI identifies a provider in billing; it is not a license.

Where is John Thomas Duell, M.D. located?

The NPPES record lists a practice address at 535 Faunce Corner RD, Dartmouth, MA, 02747. Phone: (508) 996-3991. Providers update this record themselves, so call before visiting.

How can I verify John Thomas Duell, M.D.'s license?

NPPES lists Massachusetts license number 266970, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Thomas Duell, M.D. prescribe under Medicare Part D?

In 2024, John Thomas Duell, M.D. had 4,139 Medicare Part D claims for 641 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. 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.