Procedures Preformed by Dr. Danny Yen, MD

• Anoscopy
• Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
• Endoscopy (Esophagus, Stomach, Small Intestine)
• ERCP (Endoscopic Retrograde Cholangiopancreatography)
• Hemorrhoidectomy or Excision of Anal Tags
• Liver Biopsy