Accepting New Patients


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Mount Sinai Doctors ?
    • Specialty
    • Nephrology
    • Language
    • English
    • Hospital Affiliation
    • The Mount Sinai Hospital
    • Phone
    • Mount Sinai Doctors Long Island 631-628-5000
Nephrology is the study of the kidney related diseases including high blood pressure, electrolyte disorders, and chronic kidney disease that can lead to the need for dialysis.

Robert Yohannan MD is a board certified Nephrologist serving the Huntington area since 2010.  Born in New York City and raised on Long Island, Dr. Yohannan has had a varied medical career.  He completed 4 years of medical residency training at Lutheran Medical Center (affiliate of SUNY Downstate - Brooklyn) and Maimonides Medical Center in 2003 and was certified by the American Board of Internal Medicine in 2003.

He was involved in the earlier Hospitalist medicine programs for 5 years at Holyoke Medical Center in Massachusetts, becoming Assistant Director of Hospitalist Medicine.  There he helped grow and formalize a program that is now one of the largest Hospitalist programs in Western Massachusetts.  It is there that Dr. Yohannan became interested in the field of Nephrology through passionate colleagues in Massachusetts and then returned to the NY area with his family to complete his Nephrology and Hypertension fellowship at Winthrop University Hospital, Mineola NY in 2010.

Dr. Yohannan is also a certified Clinical Hypertension Specialist since 2012 and a member of the American Society of Nephrology, with a keen interest in Glomerulonephritis and Hypertension.

His hobbies include tennis and cycling.  Dr. Yohannan is fluent in medical Spanish and Malayalam.

Dr. Yohannan is accepting new patients and has office hours in Huntington with privileges at Huntington Hospital.


American Board of Internal Medicine

Clinical Focus


MBBS, University of the West Indies

Residency, Internal Medicine
Lutheran Medical Center/NYU

Fellowship, Nephrology
Winthrop University Hospital