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Gajan Sivananthan

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    Gajan Sivananthan, MD is an Assistant Clinical Professor of Vascular and Interventional Radiology at Mount Sinai. After receiving a Bachelor of Sciences in Biochemistry from Boston College, where he graduated with honors as a Scholar of the College, he completed medical school at Rutgers Robert Wood Johnson Medical School. He subsequently completed his residency at Tufts Medical Center in Boston, MA and Fellowship in Vascular and Interventional Radiology at The Mount Sinai Medical Center in NY.

    Dr. Sivananthan has special interest in minimally invasive endovascular treatments in venous disease (pelvic congestion syndrome, May-Thurner Syndrome, deep vein thrombosis, chronic venous disease, and varicose veins), intervention oncology (embolization and ablation of various tumors including liver cancer, colon cancer metastasis, kidney cancer, and lung cancer), men’s health (prostate disease, varicoceles and erectile dysfunction), arterial disease (claudication and ulcers), and women’s health (fibroid embolization and pelvic congestion syndrome).

    Dr. Sivananthan has authored and co-authored numerous peer-reviewed publications and presented at many national meetings.



Sivananthan G, MacArthur DH, Daly KP, Allen DW, Hakham S, Halin NJ. Safety and efficacy of radiofrequency wire recanalization of chronic central venous occlusions. The journal of vascular access; 16(4).

Sivananthan G, Allen DW, Halin NJ. Extraluminal left brachiocephalic vein superior vena cava (SVC) confluence reconstruction using a radiofrequency wire to treat SVC syndrome. Journal of vascular and interventional radiology : JVIR 2014 Nov; 25(11).

Sivananthan G, Menashe L, Halin NJ. Cephalic arch stenosis in dialysis patients: review of clinical relevance, anatomy, current theories on etiology and management. The journal of vascular access; 15(3).

Sivananthan G, Halin NJ, Estes JM, Alessi-Chinetti JM, Polak JF. Value of complete full-length lower extremity sonography in patients undergoing computed tomographic pulmonary angiography. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine 2014 Dec; 33(12).

Industry Relationships

Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.

Dr. Sivananthan did not report having any of the following types of financial relationships with industry during 2015 and/or 2016: consulting, scientific advisory board, industry-sponsored lectures, service on Board of Directors, participation on industry-sponsored committees, equity ownership valued at greater than 5% of a publicly traded company or any value in a privately held company. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.

Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.

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