Dr. Demaria received her medical degree from the University of Turin, in Italy. After which, she was a post-doctoral fellow in Immunology at the Public Health Research Institute from 1989 to 1991 and completed residency in Anatomic Pathology at the New York University School of Medicine from 1997-2001. She then had various medical and teaching positions at the Public Health Research Institution and New York University School of Medicine, before her current position as Professor of Radiation Oncology with a joint appointment in Pathology and Laboratory Medicine in 2015 to the present at Weill CornellMedical College.

Dr. Demaria's responsibilities lie in the performance of diagnostic breast pathology, including support of the clinical, research, and educational missions of the Breast Pathology Service through resident and fellow education, tumor board participation, consensus conference attendance, and translational research initiatives. This includes the coverage of clinical activities related to affiliated sites among the New York-Presbyterian/ Cornell enterprise.