Her areas of clinical expertise include general pediatrics and adolescent medicine, with a particular focus on adolescent mental health and sexually transmitted infections. She serves as the medical director of the Children’s Medical Practice clinic at the Johns Hopkins Bayview Medical Center and works closely with the Centro SOL: Johns Hopkins Center for Promoting Salud/Health and Opportunity for Latinos.Dr. Polk received her M.D. from Johns Hopkins in 2004, and went on to complete a residency in pediatrics at Hopkins in 2007. She holds a certification in pediatrics from the American Board of Pediatrics.