How OpenEvidence Became a $12 Billion AI Healthcare Giant | Full Breakdown

OpenEvidence just hit a $12 billion valuation — here's the full story of how it happened. Daniel Nadler sold his first company, Kensho, to S&P Global for $550 million. Then he turned his attention to one of the most broken systems in the world — medical information. In this episode, we break down the full story of OpenEvidence: how a Harvard-trained poet and AI pioneer teamed up with Zachary Ziegler to build a clinical decision support tool that now serves 358,000 queries per day from physicians across the United States. We cover Daniel's origin story from Toronto to Harvard to the Federal Reserve, the founding of Kensho Technologies, the $550M acquisition by S&P Global, and the information crisis in medicine that led him to build OpenEvidence. We dive deep into the technical architecture, the Mayo Clinic partnership, the USMLE 100% score debate, the explosive growth metrics, the funding roadmap from Series A through D, product expansion into AI Scribe and DeepConsult, and a full business and competitive analysis. Whether you're a physician, a health tech founder, or an AI investor — this is the most in-depth breakdown of OpenEvidence you'll find anywhere. 🔔 Subscribe for weekly deep dives into the companies reshaping healthcare. 🌐 Visit us at: deltahealth.tech 💬 Drop a comment below — what's your take on AI replacing clinical decision support tools? 🎟️ PMWC Conference – This episode is sponsored by the Precision Medicine World Conference (PMWC 2026). March 4–6, 2026 at the Santa Clara Convention Center, co-hosted by Stanford, UCSF, and Yale. Over 2,500 senior decision makers, 400+ speakers, Nobel Laureates, former FDA Commissioners, and heads of precision medicine at Roche, Google, Genentech, and even the head of OpenAI. Use code DELTAHEALTH at (http://pmwcintl.com) for a discount! Timestamps 00:00 – Hook: Who is Daniel Nadler & Why OpenEvidence Matters 01:46 – Welcome & Host Introductions 04:21 – Sponsor: PMWC 2026 Conference 05:48 – Daniel Nadler's Origin Story (Toronto, Canada) 10:01 – The Steve Jobs Parallel: Art Meets Technology 12:10 – Harvard PhD & The Federal Reserve 17:00 – Founding Kensho Technologies (2013) 22:00 – S&P Global Acquires Kensho for $550M 27:27 – Lessons Learned from Kensho 29:38 – Daniel's Poetry & Art Career (MoMA PS1) 31:29 – The Information Crisis in Medicine 46:00 – PubMed & The Digital Era of Medical Knowledge 48:25 – The Founding of UpToDate 1:02:26 – ChatGPT Launches (November 2022) 1:05:00 – Technology Readiness: The Transformer Revolution 1:09:00 – Market Readiness & Capital Readiness 1:15:00 – Zachary Ziegler's Background 1:18:41 – How Nadler & Ziegler Met 1:21:00 – Self-Funding Decision & Founding OpenEvidence 1:27:46 – The Mayo Clinic Partnership 1:34:46 – Technical Architecture: Domain-Specific AI, RAG & Citations 1:46:00 – USMLE 100% Score & The Debate 1:53:30 – Growth Metrics: 358,000 Queries Per Day 1:56:00 – Why Doctors Adopted It (Free, Fast, Accurate) 2:07:00 – Sponsor: PMWC 2026 (Mid-Episode) 2:08:00 – Funding Roadmap: Series A Through D 2:40:00 – The Future of AI & The Physician Relationship 2:45:17 – Product Expansion: Dialer, AI Scribe & DeepConsult 2:52:04 – CME Credits & USMLE Prep Tutor 2:56:00 – The Dream of Integrated AI in Medicine 3:01:12 – Traditional Healthcare Sales Cycle 3:05:00 – Direct-to-Physician Approach 3:17:20 – Business Model & Monetization 3:28:40 – Business Analysis: Saves Time, Money & Lives 3:32:15 – Competitive Analysis & Network Effects 3:39:28 – Switching Costs Debate 3:44:00 – Valuation Comparisons 3:47:00 – Bear Case & Risks OpenEvidence Links 🌐 Website: http://openevidence.com 💼 OpenEvidence LinkedIn:   / openevidence   Hosts 💼 Roupen Odabashian LinkedIn:   / roupen-odabashian-md-frcpc-fasco-183aaa142   📧 Email: [email protected] 💼 Osama Hyder LinkedIn:   / sam-hyder   📧 Email: [email protected] 🎙️ Listen on Apple Podcasts: https://podcasts.apple.com/us/podcast... 🎧 Subscribe for more deep dives into the playbooks of successful healthcare companies! #OpenEvidence #HealthcareAI #ClinicalDecisionSupport #HealthTech #DanielNadler #AIinMedicine #DigitalHealth #StartupStory #DeltaHealthTechPodcast #PMWC2026 #PrecisionMedicine