Conditions Treated by Dr. Willem J. Van Der Werf, MD

• Abdominal Pain
• Atelectasis
• Bile Duct Cancer
• Biliary Atresia
• Cholecystitis and Gallstones
• Colorectal Cancer
• Crohn's Disease (Regional Enteritis)
• Diaphragmatic and-or Hiatal Hernia
• Empyema
• Esophageal Varices
• Gallbladder and Biliary Tract Cancer
• Hyperparathyroidism
• Incisional Hernia
• Inguinal Hernia
• Intestinal Obstruction
• Liver Cancer
• Pancreatic Cancer
• Peripheral Arterial Embolism and Thrombosis
• Peripheral Vascular Disease (PAD, PVD)
• Phlebitis and Thrombophlebitis
• Pleural Effusion
• Pyloric Stenosis
• Secondary Malignancies
• Ulcerative Colitis
• Umbilical Hernia
• Varicose Veins
• Ventral Hernia