Conditions Treated by Dr. John M. Rivas, MD

• Abdominal Pain
• Anemia
• Cholecystitis and Gallstones
• Cirrhosis
• Colorectal Cancer
• Crohn's Disease (Regional Enteritis)
• Diaphragmatic and-or Hiatal Hernia
• Diverticulosis, Intestinal
• Dysentery
• Dysphagia
• Enteritis
• Gas-Bloat Syndrome
• Gastroesophageal Reflux Disease (GERD)
• Gastrointestinal Malabsorption
• Hepatitis B - Immune Response
• Hepatitis C
• Irritable Bowel Syndrome
• Mesenteric Lymphadenitis
• Pancreatitis
• Unexplained Weight Loss
• Vomiting Disorders