About
Mark Sullivan, MD earned his undergraduate degree in Political Science from the University of Notre Dame, where he also completed pre-professional studies. A semester in London and work in the British Parliament shaped his early interest in policy and public systems. He went on to earn his MD from the University of Rochester School of Medicine and Dentistry, completing pathway programs in clinical ethics and Latino health. His internal medicine residency at Stony Brook University Hospital led to a faculty role where he taught residents and medical students. Dr. Sullivan holds board certification in internal medicine and brings a bilingual Spanish-language capability to his patient relationships. He has also worked with the Pan American Health Organization and Andean Health and Development in Ecuador. His care philosophy centers on the whole person. He gives patients structured homework focused on sleep, nutrition, physical activity, and work-life balance. Dr. Sullivan published "Reframing Concierge Medicine as a Medical Home" in Physician's Weekly in November 2025. He accepts new patients at the Arlington, VA location.
Education & Training
Undergraduate
University of Notre Dame, BA in Political Science and Pre-professional Studies
Medical School
University of Rochester School of Medicine and Dentistry, MD
Residency
Internal Medicine, Stony Brook University Hospital
Additional Training
Pathway programs in clinical ethics and Latino health; work with Pan American Health Organization and Andean Health and Development in Ecuador
Certifications
Languages
English, Spanish
Conditions Treated
Who is Dr. Sullivan right for?
Dr. Sullivan is a strong fit for adults seeking a whole-person approach to internal medicine and preventive care. Patients managing chronic conditions, cardiovascular risk, or complex medical concerns benefit from his thorough, structured approach. Spanish-speaking patients find a physician who communicates fluently in their language. Those interested in lifestyle medicine will respond well to his focus on sleep, nutrition, physical activity, and work-life balance.
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Frequently Asked Questions
Dr. Sullivan specializes in internal medicine and preventive medicine. He focuses on the whole person, addressing sleep, nutrition, physical activity, and work-life balance alongside clinical concerns. He also has focused training in clinical ethics and Latino health from his medical school pathway programs.
Yes, Dr. Sullivan holds board certification in internal medicine. He trained at Stony Brook University Hospital for his residency and went on to teach residents and medical students there as a faculty member.
Yes, Dr. Sullivan is bilingual and sees patients in Spanish. This capability is a core part of how he builds relationships with his patients.
Dr. Sullivan earned his MD from the University of Rochester School of Medicine and Dentistry. He completed his internal medicine residency at Stony Brook University Hospital, where he later joined the faculty.
Dr. Sullivan centers his care on the whole person. He gives patients structured homework covering sleep, nutrition, physical activity, and work-life balance. His training in clinical ethics also shapes how he approaches complex medical decisions.
Yes, Dr. Sullivan has worked with the Pan American Health Organization and with Andean Health and Development in Ecuador. This international experience informs his perspective on public health and health equity.
Dr. Sullivan accepts new patients at the Arlington, VA location of Northern Virginia Family Practice.
Yes, Dr. Sullivan published "Reframing Concierge Medicine as a Medical Home" in Physician's Weekly in November 2025.
Doctor profile last updated March 21, 2026