Eugene Koay is a Radiation Oncologist in Houston, Texas. Dr. Koay has been practicing medicine for over 15 years is highly rated in 8 conditions, according to our data. His top areas of expertise are Pancreatic Cancer, Pancreatic Ductal Adenocarcinoma, Cholangiocarcinoma (Bile Duct Cancer), Pancreaticoduodenectomy, and Pancreatectomy.