Toby is an Assistant Professor of Pediatrics and Communicable Diseases and assistant Professor of Environmental Health Sciences at the University of Michigan, Ann Arbor. Dr. Lewis is also a practicing pediatric pulmonologist and is affiliated with University of Michigan Hospitals and Health Centers. She received her medical degree from Weill Cornell Medical College of Cornell University and has been in practice for 21 years. Dr. Lewis sees patients with a broad range of respiratory problems, including: asthma, cystic fibrosis, broncho pulmonary dysplasia, chronic ventilator dependency, chronic cough, recurrent pneumonia, and congenital respiratory anomalies. She enjoys complex clinical problem solving and chronic disease management.