Dr. Ariel E. Feldstein is Chief Scientific Officer for the Internal Medicine Research Unit at Pfizer and a globally recognized physician‑scientist with over two decades of leadership in inflammation and metabolism. He has authored more than 200 peer‑reviewed publications and held senior roles across academia, biotech, and pharma, including Corporate Vice President at Novo Nordisk. He is widely known for bridging mechanistic science with translational and clinical impact to advance innovative medicines.