Todd A. Kellogg

Dr. Todd A. Kellogg is a Professor of Surgery at Mayo Clinic Alix School of Medicine in Rochester, Minnesota, specializing in bariatric and minimally invasive surgery. He serves as Program Director of the Minimally Invasive Surgery Fellowship Program, Co-Chair of the Mayo Clinic Obesity Convergence Group, and Executive Committee Member of the Nutrition and Obesity Research Program.

Dr. Kellogg's research focuses on bariatric surgery outcomes, diabetes remission following weight loss procedures, gastroparesis, and the management of complex bariatric cases including patients with psychiatric conditions, immunosuppression, and elderly populations. His work bridges clinical outcomes research with basic science investigations into gastrointestinal physiology and metabolic improvements after bariatric procedures.

His recent publications (2023-2025) demonstrate continued research productivity across multiple domains including surgical complications, diabetes remission prediction models, gastroparesis mechanisms, and innovative approaches to postoperative care. His work frequently appears in high-impact journals such as Journal of Hepatology, Gastroenterology, and Surgery for Obesity and Related Diseases.

Notable awards include:

• Surgical Infection Society Award for Best Poster Presentation (2000)
• Watson Award from University of Minnesota (1998)
• National Research Service Award (NRSA) from NIH (1997)
• Minnesota Medical Foundation Student Research Grant (1991)

As Program Director of the Minimally Invasive Surgery Fellowship Program, Dr. Kellogg mentors the next generation of bariatric surgeons while leading research initiatives through the Bariatric Surgery Program at Mayo Clinic. His work has significantly contributed to understanding the mechanisms of diabetes remission after bariatric surgery and improving outcomes for complex patient populations.

Dr. Kellogg's leadership extends to national professional organizations where he has served as President of the Minnesota Chapter of the American Society for Metabolic and Bariatric Surgery and maintains active membership in multiple surgical societies focused on obesity treatment and gastrointestinal surgery.