Conditions Treated by Dr. John J. Zelis, MD

• Anorectal Abscess
• Atelectasis
• Cholecystitis and Gallstones
• Collapsed Lung (Pneumothorax)
• Diaphragmatic and-or Hiatal Hernia
• Empyema
• Esophageal Varices
• Hidradenitis
• Hyperparathyroidism
• Intestinal Obstruction
• Peripheral Arterial Embolism and Thrombosis
• Peripheral Vascular Disease (PAD, PVD)
• Pleural Effusion
• Pyloric Stenosis
• Ulcerative Colitis
• Varicose Veins