Daniel Leffler, MD, MS currently serves as the Director of Research at the Celiac Center at Beth Israel Deaconess Medical Center, as the Director of Quality Improvement for the Division of Gastroenterology at BIDMC and is an Associate Professor of Medicine at Harvard Medical School.

Dr. Leffler currently divides his time between patient care, quality improvement initiatives and clinical and translational research in celiac disease and other digestive disorders. To continue his work in celiac disease, Dr. Leffler has been awarded a five year career development grant from the National Institute of Health and has been the recipient of multiple foundation and industry sponsored grants for the advancement of digestive health. He lectures nationally and internationally on these topics and has co-authored a book for patients entitled: Real Life with Celiac Disease. Troubleshooting and Thriving Gluten Free, published by the American Gastroenterological Association.