CODEX's AI and Diagnosis Webinar Series - March 2026
Ft. Ashwin Ramaswamy, MD, and Girish Nadkarni, MD, MPH, from the Icahn School of Medicine at Mount Sinai
Monday, April 13, 2026
9-10 a.m. Pacific Time
AI health chatbots like ChatGPT Health are increasingly the first stop for people wondering whether their symptoms warrant a trip to the ER. But how safe and accurate is that guidance for patients?
In a landmark Nature Medicine study, researchers at the Icahn School of Medicine at Mount Sinai put ChatGPT Health to the test and found troubling gaps: the tool directed over half of true emergencies toward a 24-48 hour follow-up rather than the emergency department, and its suicide-risk safeguards were more likely to trigger in lower-risk scenarios than when users disclosed specific plans for self-harm.
During this webinar, lead study author Ashwin Ramaswamy, MD, and Girish N. Nadkarni, MD, MPH, will share their findings and what they mean for the future of AI-powered health triage. Bring your questions for the Q&A portion of the webinar.
Featured Speakers

Ashwin Ramaswamy, MD
Instructor, The Mount Sinai Hospital

Girish Nadkarni, MD, MPH
Chair AI Officer, Mount Sinai Health System
Irene and Dr. Arthur M. Fishberg Professor of Medicine at the Icahn School of Medicine at Mount Sinai

Sumant Ranji, MD, SFHM (Moderator)
Director, UCSF CODEX
Director of Quality Improvement and Patient Safety, Division of Hospital Medicine at the Zuckerberg San Francisco General Hospital (ZSFG)
Sumant is a renowned leader in patient safety, quality improvement, and medical education. He first joined UCSF as a fellow in hospital medicine and clinical research, then went on to become a faculty member in the Division of Hospital Medicine at UCSF Health, where he held multiple leadership positions. As director of CoDEx, Sumant leads the center’s strategic planning and the execution of its work to champion diagnostic excellence research and build awareness of and engagement within the field.
Learn more about Sumant here.
For more CODEX webinars, click here.
About the Webinar Series
Dive headfirst into the future of healthcare innovation to unravel the most promising artificial intelligence (AI) advancements and approaches. At each event, CODEX brings together the brightest minds in the field to share exclusive updates and challenges from projects underway with the potential to reshape the landscape of medical diagnosis. Through this monthly webinar series, you'll hear from visionary researchers, on-the-ground providers, and the next generation of diagnostic excellence leaders who will illuminate the path toward real-life improvements for healthcare delivery, health equity, and patient care and outcomes.
For updates and future invitations, join our mailing list.
Disclaimer: This webinar is for educational purposes only. Such use does not constitute an endorsement or approval from UCSF of any organization, product, and/or service.
