About
Denis P. Dupuis, MD earned his Bachelor of Arts in Biology from Saint Anselm College in Manchester, NH in 1978. He then completed a Master of Science in Physiology at the University of Connecticut before earning his Doctorate of Medicine from Boston University School of Medicine in 1985. He completed his internship and internal medicine residency at the University of Massachusetts Medical Center in Worcester, finishing in 1988.
Dr. Dupuis holds dual board certifications as a Diplomate of the National Board of Medical Examiners and a Diplomate of the American Board of Internal Medicine. Alpha Omega Alpha Medical Honor Society inducted him in 1985, and he received the Patients' Choice Award in 2011. He is a member of the American College of Physicians and has served on the Fidelity Health Alliance Board of Trustees. His clinical focus spans internal medicine, preventive medicine, cardiovascular health, diabetes prevention, and chronic disease management. His wife Kathy, a registered nurse, works with him directly in the practice. Together they have built patient relationships that span decades across Southern New Hampshire.
Education & Training
Undergraduate
Saint Anselm College, Bachelor of Arts in Biology, 1978
Medical School
Boston University School of Medicine, Doctorate of Medicine, 1985
Residency
University of Massachusetts Medical Center, Internal Medicine, 1986-1988
Additional Training
University of Connecticut, Master of Science in Physiology, 1980; Internship at University of Massachusetts Medical Center, 1985-1986
Certifications
Conditions Treated
Who is Dr. Dupuis right for?
Dr. Dupuis is a strong fit for adults in Southern New Hampshire who want a long-term primary care relationship. Patients managing cardiovascular risk, diabetes, or chronic conditions benefit from his preventive focus. His use of the MDVIP Wellness Program suits patients who want advanced screenings and proactive health planning. Adults who value direct phone access to their physician after hours and on weekends will find his model especially practical.
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Frequently Asked Questions
Dr. Dupuis specializes in internal medicine and preventive medicine. His clinical focus includes cardiovascular health, diabetes prevention, chronic disease management, and nutrition. He uses advanced diagnostic screenings through the MDVIP Wellness Program to address these areas proactively.
Yes. Dr. Dupuis holds dual board certifications as a Diplomate of the National Board of Medical Examiners and a Diplomate of the American Board of Internal Medicine. He earned both credentials following his residency training at the University of Massachusetts Medical Center.
Dr. Dupuis earned his medical degree from Boston University School of Medicine in 1985. He completed both his internship and internal medicine residency at the University of Massachusetts Medical Center, finishing in 1988. He also holds a Master of Science in Physiology from the University of Connecticut.
Dr. Dupuis holds affiliations with Catholic Medical Center and Elliot Hospital. These affiliations extend his ability to coordinate care for patients in the Southern New Hampshire region.
Yes. Dr. Dupuis provides members with direct phone access after hours and on weekends. This means patients can reach him personally when urgent questions or concerns arise outside of regular appointments.
Alpha Omega Alpha Medical Honor Society inducted Dr. Dupuis in 1985, recognizing his academic achievement at Boston University School of Medicine. He also received the Patients' Choice Award in 2011. He is a member of the American College of Physicians and has served on the Fidelity Health Alliance Board of Trustees.
Dr. Dupuis treats a broad range of adult conditions, with a strong focus on cardiovascular health, diabetes prevention, and chronic disease management. He also addresses nutrition and fitness as part of a comprehensive preventive approach through the MDVIP Wellness Program.
Dr. Dupuis works alongside his wife Kathy, a registered nurse, who serves as a core member of the care team. Their partnership means patients interact with a consistent, familiar team at every visit.
Doctor profile last updated March 21, 2026