Dr. Peacock's professional interests include providing medical care and social support services to the growing population of adolescents and young adults with a chronic childhood illness or disability as they move from pediatric to adult healthcare. This is made possible through the Center for Transition Medicine at Baylor College of Medicine, which is nationally recognized for its excellence in healthcare and education. Partnered with Texas Children’s Hospital, it was developed to build adult capacity for patients with chronic childhood conditions. She and her faculty take care of patients with some of the rarest and complex conditions. The Center for Transition Medicine provides elective rotations for residents in primary care and medical students. In addition, the center is partnered with three outside institutions to provide an internship placement for social work students and a learning rotation for nursing students.