Procedures Preformed by Dr. Michael J. Zerega, MD

• Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
• Endoscopy (Esophagus, Stomach, Small Intestine)
• ERCP (Endoscopic Retrograde Cholangiopancreatography)
• Fecal Impaction Removal
• Liver Biopsy
• Manometry