Conditions Treated by Dr. Gregory A. Derfus, MD

• Abdominal Pain
• Anemia
• Barrett's Esophagus
• Benign Neoplasm of the Digestive System
• Biliary Atresia
• Cholecystitis and Gallstones
• Cirrhosis
• Colorectal Cancer
• Crohn's Disease (Regional Enteritis)
• Diaphragmatic and-or Hiatal Hernia
• Diverticulitis, Intestinal
• Diverticulosis, Intestinal
• Diverticulum of Esophagus
• Duodenal Ulcer
• Duodenitis
• Dysentery
• Dysphagia
• Enteritis
• Esophageal Achalasia and Cardiospasm
• Esophageal Cancer
• Esophageal Ulcer
• Esophageal Varices
• Esophagitis
• Gas-Bloat Syndrome
• Gastric Ulcer
• Gastritis
• Gastroesophageal Reflux Disease (GERD)
• GastroIntestinal Bleeding
• GastroIntestinal Malabsorption
• Gastroparesis