About
Dr. Seth Sullivan earned his medical degree from the University of Kansas School of Medicine in Kansas City. He completed his family medicine residency at the University of Missouri Health Care, also in Kansas City, Missouri. He holds board certification in family medicine and brings that training to a solo concierge practice in New Canaan, Connecticut.
Dr. Sullivan is passionate about nutrition, weight loss, and chronic disease management. He favors exercise and dietary changes as first-line tools, reaching for medications only when necessary. Patients describe him as a hands-on physician who genuinely listens. Castle Connolly named him a Top Doc in 2022, recognizing him in the Top Doctors New York Metro Area and New York Magazine. The Vasculitis Foundation honored him with its 2016 V-RED award for excellence in diagnostics. He welcomes adult patients and keeps his panel limited to maintain meaningful, relationship-driven care.
Education & Training
Medical School
University of Kansas School of Medicine, Kansas City
Residency
Family Medicine Residency at University of Missouri Health Care, Kansas City, Missouri
Certifications
Conditions Treated
Who is Dr. Sullivan right for?
Dr. Sullivan is a strong fit for adults seeking a primary care physician who knows them well over time. Patients managing chronic conditions like diabetes, hypertension, heart disease, or COPD benefit from his hands-on approach. He works well with patients who want to address health concerns through lifestyle changes before medications. Adults looking for direct access to their doctor and prompt appointments thrive in his practice.
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Frequently Asked Questions
Dr. Sullivan treats a broad range of chronic and acute conditions. His focus includes diabetes, hypertension, heart disease, COPD, and fibromyalgia. He also manages men's health concerns, weight-related conditions, and general primary care needs for adults.
Dr. Sullivan favors exercise and dietary changes before reaching for medications. He views nutrition and lifestyle modification as primary tools for long-term health. This approach shapes how he handles chronic disease management, weight loss, and preventive care.
Yes, Dr. Sullivan holds board certification in family medicine. He trained at the University of Kansas School of Medicine and completed his residency at the University of Missouri Health Care in Kansas City.
Castle Connolly named Dr. Sullivan a Top Doc in the New York Metro Area in 2022, with recognition in New York Magazine. The Vasculitis Foundation also honored him with its 2016 V-RED award for excellence in diagnostics.
Yes, Dr. Sullivan offers dedicated nutrition counseling and weight loss programs. He is particularly passionate about these areas and integrates dietary guidance into his broader approach to chronic disease management and preventive care.
Dr. Sullivan offers onsite blood draws, urinalysis, EKG, and X-rays at his practice. He also provides rapid testing for strep, flu, and COVID-19. These capabilities allow him to evaluate and manage many conditions without sending patients elsewhere.
Dr. Sullivan provides urgent care visits exclusively for established patients. This ensures that members of his practice can access timely care when unexpected health concerns arise.
Dr. Sullivan welcomes adult patients of all ages. He focuses on primary care, preventive medicine, and chronic disease management. He keeps his panel limited to maintain meaningful, relationship-driven care for each patient.
Doctor profile last updated March 21, 2026