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Dr. John Thomas Duell, M.D.

Clinical Cardiac Electrophysiology Physician in Dartmouth, MA · enumerated 2009.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1598994261

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Registry record

Entity type Individual (Type 1)
Name Dr. John Thomas Duell
Credential M.D.
Sex Male
Practice address 535 Faunce Corner Rd, Dartmouth, MA, 02747
Phone (508) 996-3991
Enumeration date Jul 2, 2009
Last updated in NPPES Apr 24, 2023

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 266970 (MA) Secondary
207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 266970 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does John Duell practice?
The practice location on file with NPPES is in Dartmouth, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Duell?
The National Provider Identifier (NPI) for John Duell is 1598994261, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-24.