Amanda M. Johnson, M.D.

Amanda Marie Johnson, M.D., is a gastroenterologist at Mayo Clinic in Rochester, Minnesota, specializing in the care of individuals with inflammatory bowel disease (IBD) and related conditions. Dr. Johnson provides advanced diagnostic and therapeutic endoscopic procedures such as EGD, colonoscopy and pouchoscopy, focusing on helping people achieve disease control and improved quality of life. She also has a particular interest in the intersection of IBD and obesity, offering comprehensive, individualized care for complex needs.

Areas of expertise

Dr. Johnson combines expertise in medical and endoscopic management of gastrointestinal disorders with a commitment to research-driven care.

• Crohn’s disease: Evaluation and long-term management for individuals with mild to severe disease.
• Ulcerative colitis: Advanced medical therapy and monitoring for people with complex disease.
• Pouchitis: Care for individuals following ileal pouch surgery.
• Microscopic colitis: Diagnosis and treatment strategies for chronic diarrhea.
• Endoscopic procedures: EGD, colonoscopy and pouchoscopy for evaluation and ongoing care of gastrointestinal disorders.
• Inflammatory bowel disease and obesity: Clinical focus on the interplay between weight and IBD outcomes.

Research and professional highlights

Dr. Johnson is board-certified in internal medicine and gastroenterology. She serves as an assistant professor of medicine at Mayo Clinic College of Medicine and Science. Her research explores the relationship between inflammatory bowel disease and obesity, clinical trials of advanced therapies and outcomes-based studies to improve treatment strategies. She has authored numerous peer-reviewed articles and book chapters on Crohn’s disease, ulcerative colitis and emerging therapies.