Dr. Calabrese is an Assistant Professor of Medicine at UCSF and a Staff Physician at the San Francisco VA Medical Center. He received his undergraduate degree from Washington University in St. Louis and completed his MD at Case Western Reserve University School of Medicine.

He serves as an attending physician in the intensive care unit, pulmonary consult service and outpatient pulmonary clinic at the SF VAMC. He is also an attending physician for the Advanced Lung Disease Service at UCSF Parnassus where he evaluates patients in the lung transplant clinics. He is active in the International Society for Heart and Lung Transplantation.

His research focuses on the mechanisms for innate immune inflammation in lung transplant outcomes. This research uses mouse models of human lung disease and human tissue samples to understand primary graft dysfunction, antibody-mediated rejection and chronic lung allograft dysfunction. The goal of this work is to improve outcomes following lung transplantation.