# Daniel Nadler

Founder and CEO, OpenEvidence. TIME100 AI 2026, Innovators. His AI medical search tool, known as ChatGPT for doctors, is used by 40% of US physicians, he told CNBC. ([cnbc.com](https://www.cnbc.com/2026/01/21/openevidence-chatgpt-for-doctors-doubles-valuation-to-12-billion.html))

- Born: 1983, Toronto, Ontario, Canada ([en.wikipedia.org](https://en.wikipedia.org/wiki/Daniel_Nadler))
- Education: PhD, Harvard University, 2016 ([en.wikipedia.org](https://en.wikipedia.org/wiki/Daniel_Nadler))
- Career: OpenEvidence (Founder and CEO, 2022 to now); Kensho (Co-founder, 2013–2018) ([cnbc.com](https://www.cnbc.com/2026/01/21/openevidence-chatgpt-for-doctors-doubles-valuation-to-12-billion.html), [linkedin.com](https://www.linkedin.com/in/danielnadler), [en.wikipedia.org](https://en.wikipedia.org/wiki/Daniel_Nadler))
- TIME profile: https://time.com/collection/time100-ai/2026/daniel-nadler/
- Profile: https://www.autumn.ai/resources/most-influential-people-in-ai/daniel-nadler

- Published a book of poetry, Lacunae: 100 Imagined Ancient Love Poems, with Farrar, Straus and Giroux in 2016. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Daniel_Nadler))
- Was an executive producer on the film Motherless Brooklyn (2019) and a co-financier and producer of Palmer (2021). ([en.wikipedia.org](https://en.wikipedia.org/wiki/Daniel_Nadler))
- Co-founded his first AI company, Kensho, in 2013 while still a Harvard PhD student; S&P Global bought it in 2018. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Daniel_Nadler))
- Between companies he went back to reading the classics, studied Ancient Greek again and took drawing lessons from a Royal Academy teacher. ([goldmansachs.com](https://www.goldmansachs.com/insights/talks-at-gs/daniel-nadler-on-building-an-AI-powered-search-engine-for-medicine))
- Says the images coming out of New York City when COVID hit made it clear his second company would be in medicine. ([goldmansachs.com](https://www.goldmansachs.com/insights/talks-at-gs/daniel-nadler-on-building-an-AI-powered-search-engine-for-medicine))
- Says 95% of new OpenEvidence users hear about it from another physician, and that more than 40% of US physicians use it. ([cnbc.com](https://www.cnbc.com/2026/01/21/openevidence-chatgpt-for-doctors-doubles-valuation-to-12-billion.html))