Conditions Treated by Dr. Mark J. Heinzelmann, MD

• Anal and Rectal Cancer
• Anal Fissure
• Anal Fistula
• Anorectal Abscess
• Carcinoma in Situ
• Colorectal Cancer
• Crohn's Disease (Regional Enteritis)
• Hemorrhoids
• Intestinal Abscess
• Intestinal Obstruction
• Secondary Malignancies
• Ulcerative Colitis