Saud Siddiqui

I'm Saud, a physician and founder focused on clinical AI evaluation and deployment.

I'm board-certified in emergency medicine. Previously, I co-founded Sketchy while in medical school and helped bootstrap it to a $30M Series A. I served as CEO, scaled the company, and now serve on the board. Sketchy is used and loved by medical learners worldwide. Most recently, I led the 0-to-1 build of DDx by Sketchy, an AI case simulation platform for medical training.

Posts

2026-03-25 Compiling the HEART Score into a Model-Facing Rule
• 2026-03-10 You Gotta Smell It. On product intuition and getting close to the problem.
2026-03-04 Does GPT-5.2 get better at diagnosis when you ask it to think harder?