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

Dr. Dianne Jean Defusco, MD

Individual provider Internal Medicine Physician · NPI 1063584787

Dr. Dianne Jean Defusco, MD is an Internal Medicine Physician in North Haven, Connecticut. Licensed in Connecticut. Registered with an NPI since 2006.

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

See every abbreviation used in this directory →

Practice location Address checks out

2 Broadway
North Haven, CT 06473-2349
Phone: (203) 234-6500
Fax: (203) 234-6503
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 041834 (CT)

Record details

NPI number1063584787
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 15, 2006
Last updated in NPPESSeptember 14, 2007

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