Dr. Pereira graduated from the Faculty of Medicine of the University of Lisbon, Portugal, in 2004, and completed a 5-year residency program in Internal Medicine in 2011. Because of his interest in HIV infection, he obtained a Master’s Degree in HIV/AIDS in 2009 from the University of Barcelona, Spain. In 2017, he graduated from Mount Sinai Beth Israel’s Psychiatry Residency Program and in 2018 completed a fellowship in Consultation-Liaison Psychiatry at Columbia University Irving Medical Center/New York-Presbyterian Hospital, New York. He is currently an Assistant Professor in Clinical Psychiatry – Division of Consultation-Liaison Psychiatry at Columbia University Irving Medical Center/New York-Presbyterian Hospital – and co-chair of the HIV/AIDS Section of the World Psychiatric Association.