Procedures Preformed by Dr. Mark Y. Johnson, MD

• Colon Cancer Screening
• Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
• Endoscopy (Esophagus, Stomach, Small Intestine)
• ERCP (Endoscopic Retrograde Cholangiopancreatography)
• Esophageal Dilatation
• Hemorrhoidectomy or Excision of Anal Tags