Dr. Cusin went to Medical School at the Universita degli Studi, in Milan, Italy, where she also completed a residency in Psychiatry. Dr. Cusin was working as Psychiatrist in an inpatient unit and involved in research when in 2004 she decided to come to the U.S. for a Research Fellowship at Mass. General Hospital. She decided to pursue further training in the U.S. and after completing the Adult Psychiatry Residency at MGH/McLean she joined the staff of the Depression Clinical & Research Program (DCRP), under the mentorship of Dr Maurizio Fava.

Dr. Cusin is the director and founder of the MGH Ketamine clinic for treatment-resistant depression. She also has an outpatient clinic at the DCRP and often performs consultations for patients with Treatment-Resistant Depression. She has expertise in ketamine, VNS and DBS and she is involved in numerous research studies on ketamine in treatment-resistant mood disorders at MGH. She is Associate Professor in Psychiatry at Harvard Medical School.