Dr. Chadwick is Irene Heinz Given and John LaPorte Given Chair in Pediatrics, Director of the Section of Pediatric, Adolescent and Maternal HIV Infection and attending physician in Pediatric Infectious Diseases at the Ann & Robert H. Lurie Children's Hospital of Chicago. She is Professor of Pediatrics at Northwestern Feinberg School of Medicine. She joined the Northwestern faculty in 1985 after completing her pediatric residency and fellowship in Pediatric Infectious Diseases at Children's Memorial Hospital at the McGaw Medical Center of Northwestern University.

Dr. Chadwick's research career has been focused on the field of Pediatric HIV/AIDS. As a member of the NIH-funded International Maternal Pediatric Adolescent AIDS Clinical Trial (IMPAACT) network, she is chairperson of domestic and international protocols investigating the pharmacokinetics, pharmacogenomics and efficacy of new antiretroviral agents and approaches to therapy and early intensive therapy to achieve remission in HIV-infected infants, and Vice-Chair of the Cure Research Agenda Committee. She serves as Co-Principal Investigator of the NIH-funded Pediatric HIV/AIDS Cohort Study (PHACS), a prospective longitudinal cohort study investigating the long-term effects of HIV infection and antiretroviral medications in mother/infant pairs and young adults who were born with HIV or perinatally exposed to HIV. This prospective longitudinal study follows >3000 newborns, young children, adolescents, young adults. She chairs the American Academy of Pediatrics Committee on Pediatric AIDS, and is a member of the U.S. Dept of Health and Human Services Panel on Antiretroviral Therapy and Medical Management of Children Living with HIV.

I am a Pediatric Infectious Diseases Specialist who cares for infants, children and adolescents living with or exposed to HIV infection. As the primary pediatric consultant to the 24/7 Illinois Perinatal HIV Hotline, I advise obstetric and pediatric providers on the management of perinatally HIV-exposed newborns. In response to the growth of Pediatric AIDS in international settings, I have traveled to several African nations to train physicians about prevention of mother to child transmission of HIV and the management of antiretroviral therapy for children and adolescents living with HIV.