Dr. Gregory P. Kosmidis earned his Doctor of Dental Medicine degree from Tufts University School of Dental Medicine. Before pursuing his dental education, he obtained a BA in Chemistry from Boston University. He later went on to complete an MBA with a focus on Finance and Management Information Systems, jointly between Boston University School of Management and the University of Massachusetts School of Management.

Dr. Kosmidis has practiced dentistry in several locations across Massachusetts and has now chosen Cambridge as his primary practice. Prior to his career in dentistry, he gained professional experience in Environmental Science and Engineering as well as in Finance.