Freddy Caldera DO, PhD, MS

Freddy Caldera, DO, is a gastroenterologist and hepatologist at UW Health. Dr. Caldera treats patients with gastrointestinal (GI) tract disease. These digestive system disorders include stomach ulcers and inflammatory bowel disease (IBD). Dr. Caldera diagnoses and treats ulcerative colitis (an IBD that affects the colon), Crohn’s disease (an IBD that can affect any part of the digestive tract), and other chronic and acute GI diseases. He evaluates symptoms such as abdominal pain, bleeding, or diarrhea, and recommends testing and treatment options. He identifies autoimmune diseases that cause the body to attack healthy tissues.

Dr. Caldera performs surgeries during which he removes polyps to prevent colon cancer. He also sees hospitalized patients with symptoms that could require surgery. Dr. Caldera is an associate professor in the Division of Gastroenterology and Hepatology at the University of Wisconsin School of Medicine and Public Health, Department of Medicine. His clinical research includes investigating vaccine responses in patients with IBD.