Dr. Tyagi received his medical education at King George’s Medical College in Lucknow, India and is a member of the ACG, the AGA, the AMA, and the ASGE. His research has been published by the Journal of Investigative Medicine.

Dr. Perumalsamy is board-certified in gastroenterology and internal medicine. He was the 2008 recipient of the New York Society of Gastrointestinal Endoscopy’s prestigious David Falkenstein Award for Outstanding Presentation.

Dr. Dharmaraja’s professional interests include GERD, colon polyps, and colon cancer prevention. He is a member of the AGA and the ASGE, and received the Special Award for Excellence in Gastroenterology in 1976.

Dr. Suraweera completed his Internal Medicine Residency at Olive View-UCLA Medical Center and his Gastroenterology Fellowship at UC Irvine Medical Center. His interests are in Hepatology and Inflammatory Bowel Disease. He has numerous research publications in the field of Gastroenterology and continues to have an active interest in research.