Dr. Olivera earned his medical degree from Abraham Lincoln School of Medicine in Illinois. He furthered his education and training with an internship and residency at Mercy Hospital and Medical Center in Chicago, Illinois and a fellowship at Rosalind Franklin University. Dr. Olivera has clinical interest in abdominal pain, colon cancer screening, constipation, fatty liver, Gastroesophageal Reflux Disease, Hepatitis C, Irritable Bowel Syndrome, and obesity. He is board certified in both internal medicine and gastroenterology.