OpenEvidence, the ad-powered AI search used by two-thirds of US doctors, hits $15B valuation
Ars Technica AI · rss · 2026-10-21
Per Ars Technica, Miami-based OpenEvidence — founded by serial entrepreneur Daniel Nadler in 2022 — has reached a $15 billion valuation with an ad-powered model. Nearly two-thirds of US physicians use its chatbot to search medical journals and clinical guidelines for diagnosis and treatment decisions, processing over 42 million prompts last month. Nadler calls it 'the first viral consumer internet app in healthcare,' grown largely by word of mouth, amid debate over AI's role in patient care.
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