Graham Walker, MD, is an emergency physician based in San Francisco, where he practices medicine. He is also the founder of MDCalc and Offcall, digital tools that millions of clinicians utilize for decision-making at the bedside. His work focuses on the intersection of medicine, technology, and systems design, aiming to bridge the gap between patient needs and industry delivery.

Dr. Walker has played a role in shaping AI strategy at Kaiser Permanente/The Permanente Medical Group.