Procedures Preformed by Dr. Barrett J. Wallis, MD

• Anoscopy
• Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
• CT Scan (Computed Tomography)
• EKG (Electrocardiogram, ECG)
• Endoscopy (Esophagus, Stomach, Small Intestine)
• ERCP (Endoscopic Retrograde Cholangiopancreatography)
• Hemorrhoidectomy or Excision of Anal Tags
• Liver Biopsy
• Liver Transplant
• Manometry
• MRI (Magnetic Resonance Imaging)
• pH Probe
• Surgical Biopsy
• X-Ray