Dr. Rachel Miller, MD, is board certified in Internal Medicine, Pulmonary Disease, Critical Care Medicine and Allergy and Immunology. She has appointments in 3 departments in 2 Columbia schools. She is the Chief for the Division of Pediatric Allergy and Immunology, Director of Adult Allergy, and is the Director of the Allergy and Immunology Fellowship program. She was named as top pulmonologist in the 2011 and 2012 US News and World Report report and is a Fellow at the American Academy of Allergy Asthma and Immunology. Her clinical office specializes in the treatment of asthma and allergies at the John Edsall-John Wood Asthma Center. In addition, Dr. Miller is the Co-Deputy Director of the Columbia Center for Childrens Environmental Health (CCCEH), and Associate Director and Lead Physician Scientist for the Disease Investigation through Specialized Clinically-Oriented Ventures in Environment Research (DISCOVER). Her research concentrates on the mechanisms for the onset of asthma. One large research focus involves establishing and studying a birth cohort from Northern Manhattan (www.CCCEH.org), determining the importance of environmental allergens, traffic-related pollutants, and phthalate exposure to the onset of allergies, asthma, and Th2 immune responses. A major emphasis is on the role of prenatal and early postnatal exposure on later pediatric and adolescent asthma risk. Additional areas of research include identifying novel genetic by environment interactions important to the onset of asthma. She also has established several mouse models examining the importance of prenatal and postnatal environmental exposures on asthma risk. More recent initiatives have been to build a program in environmental epigenetics and asthma by studying DNA methylation in cell, mouse and human systems.