Dr. Jan ZislisMD

Primary Care

at Modern Medical Concierge — Purchase, NY

About

Dr. Jan Zislis founded Modern Medical Concierge in 2011 with a vision for deeply personalized, whole-person primary care. He completed his undergraduate studies at Franklin & Marshall College and pursued graduate work in Biotechnology Engineering at Tufts University. He earned his medical degree from the Technion - Israel Institute of Technology in Haifa, Israel, completing rigorous clinical rotations in internal medicine, general surgery, and pediatrics. His residency in Emergency Medicine and Traumatology at the University of Connecticut in Hartford earned him the prestigious Phillip Stent Award for Outstanding First Year Resident. He went on to serve as Chief Resident in his final year.

Dr. Zislis holds board certification as an Emergency Physician and completed advanced programs in Functional and Nutritional Medicine. He currently pursues a Fellowship in Anti-Aging and Metabolic Medicine through the American Academy of Anti-Aging Medicine. He serves on the medical staff at Greenwich Hospital and sits on the Emergency Department Peer Review Committee. He co-leads the practice's palliative and end-of-life care program alongside Dr. Michael Canter. His approach treats the root causes of illness rather than symptoms alone.

Education & Training

Undergraduate

Franklin & Marshall College

Medical School

Technion – Israel Institute of Technology, Haifa, Israel

Residency

Residency in Emergency Medicine and Traumatology, University of Connecticut, Hartford, Connecticut

Fellowship

Fellowship in Anti-Aging and Metabolic Medicine (currently enrolled), American Academy of Anti-Aging Medicine

Additional Training

Graduate studies in Biotechnology Engineering, Tufts University; Advanced programs in Functional and Nutritional Medicine

Certifications

Board-Certified Emergency Physician
Fellowship in Anti-Aging and Metabolic Medicine (currently enrolled) through the American Academy of Anti-Aging Medicine

Conditions Treated

acute illness
chronic illness
metabolic conditions
chronic disease
palliative care conditions
end-of-life care conditions

Who is Dr. Zislis right for?

Dr. Zislis works well with patients who want a physician who looks beyond symptoms to underlying causes. Adults managing complex or chronic conditions benefit from his functional medicine training. Patients interested in preventive care, metabolic health, or anti-aging medicine find his approach a strong fit. His emergency medicine background also makes him effective for patients who need thorough, rapid clinical thinking.

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Frequently Asked Questions

Dr. Zislis focuses on primary care, functional medicine, and preventive medicine. He approaches illness by identifying root causes rather than treating symptoms in isolation. He also has deep expertise in emergency medicine from his residency and board certification at the University of Connecticut.

Yes, Dr. Zislis holds board certification as an Emergency Physician. He also completed advanced programs in Functional and Nutritional Medicine. He currently pursues a Fellowship in Anti-Aging and Metabolic Medicine through the American Academy of Anti-Aging Medicine.

Dr. Zislis earned his medical degree from the Technion - Israel Institute of Technology in Haifa, Israel. He completed his residency in Emergency Medicine and Traumatology at the University of Connecticut in Hartford. There, he earned the Phillip Stent Award for Outstanding First Year Resident and later served as Chief Resident.

Yes, Dr. Zislis co-leads the palliative and end-of-life care program at Modern Medical Concierge alongside Dr. Michael Canter. The program supports patients and families through serious illness with a whole-person focus.

Dr. Zislis takes a root-cause approach to medicine. Rather than addressing symptoms alone, he works to understand the underlying factors driving a patient's health concerns. Every new patient relationship begins with a conversation before any examination.

Yes, Dr. Zislis serves on the medical staff at Greenwich Hospital. He also sits on the Emergency Department Peer Review Committee there.

Dr. Zislis offers bio-identical hormone pellet therapy, IV infusion therapy, and OMNIWave shockwave therapy through Modern Medical Concierge. He also provides GAINSWave sexual wellness treatments for male patients. His functional medicine training informs how he integrates these therapies into each patient's overall care plan.

Doctor profile last updated March 21, 2026