He is an advanced endoscopist who specializes in pancreaticobiliary diseases and practices state–of–the–art ERCP and endoscopic ultrasound (EUS). Board–certified in Gastroenterology, Dr. Papachristou received his medical degree from the University of Patras School of Medicine in Greece graduating first in his class (summa cum lade). He completed training in Gastroenterology at the University of Pittsburgh and advanced endoscopy at the Mayo Clinic in Rochester, MN.