Dr. Cohall grew up in Harlem and is committed to helping vulnerable communities achieve health equity. He trained at both Montefiore and Mt. Sinai Hospitals and is board-certified in Pediatrics and Adolescent Medicine. He is the founder and Principal Investigator for Project STAY (Services to Assist Youth) which has been providing comprehensive, integrated, interdisciplinary services for young people living with, or at-risk for HIV for over 30 years. In addition to the provision of clinical services at New York-Presbyterian Hospital, Project STAY has developed a network of over twenty community-based partners to provide young people throughout NYC with onsite HIV/STI/HepC screening and linkages to PEP/PrEP services at New York-Presbyterian Hospital.