Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Nelson A Bonheim, MD

Individual provider Gastroenterology Physician · NPI 1366514549

Nelson A Bonheim, MD is a Gastroenterology Physician in Greenwich, Connecticut. Practices as a sole proprietor. Licensed in Connecticut.

Licensed in
CT
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

500 W Putnam Ave Ste 100
Greenwich, CT 06830-6086
Phone: (203) 863-2900
Fax: (203) 863-2901
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 017080 (CT)

Record details

NPI number1366514549
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 14, 2006
Last updated in NPPESSeptember 24, 2010
Mailing address500 W Putnam Ave, Suite 100, Greenwich, CT 06830-6086

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