He is a winner of an Innovation Award by the San Diego Business Journal. He is on the advisory board of American Brain Tumor Association, San Diego Brain Tumor Foundation, Chris Elliott Fund, Nicolas Conor Institute, Voices Against Brain Cancer, and Philippine Brain Tumor Alliance. He has been the author of over 250 scientific publications, reviews, or books.

He is the inventor on several patents and patent applications, and founder and advisor to many cancer and neurosciences focused biotech startups. In addition, he is a member of the Los Angeles Biomedical Research Institute.

Dr. Kesari has had a long-standing interest in cancer stem cells and studies their role in the formation of brain tumors and resistance to treatment. He believes that in order to cure patients with brain tumors we first need to gain a better molecular and biological understanding of the disease. A physician/scientist, Kesari harnesses his experience in surgery, chemotherapy, immunotherapy, radiation therapy and novel devices to help develop Precision Therapeutic Strategies that will advance medicine to a new stage in the battle against brain tumors and eradicate the disease.