Dr. Bekelis is a board certified neurosurgeon with subspecialty training in minimally invasive endovascular neurosurgery. He additionally specializes in Gamma Knife Radiosurgery, and complex brain, and spine operations. He is the Chairman of Neuro-interventional Services for Catholic Health Services of Long Island, the Director of the Stroke and Brain Aneurysm Center of Long Island at Good Samaritan Hospital Medical Center and the co-director of the Neuro Intensive Care Unit at GSHMC. He led the team that achieved the certification of this center as a Comprehensive Stroke Center by TJC in less than one year after the inception of the program.

He is also an Assistant Professor at The Dartmouth Institute for Health Policy and Clinical Practice and the Director of the Population Health Research Institute of New York at CHSLI. As a researcher, he has led several projects focusing on outcome predictive modeling, comparative effectiveness, resource utilization, regional disparities, diffusion of innovation, intensity of care, workforce allocation, medico-legal issues, and cost. He is the co-founder of Ikona, a healthcare company focusing on optimizing the patient experience. Dr. Bekelis has created two iOS applications on personalized medicine, and a website on the diffusion of medical procedures and technology.