Cobi Blumenfeld-Gantz is a technology entrepreneur based in the New York artificial intelligence sector. He serves as CEO and Co-Founder of Chapter [1], a platform that provides technology-enabled navigation services for Medicare and retirement planning [1].
Founded
Media & appearances
- Is Chapter the best option for Medicare? | Co-Founder of Chapter, Cobi Blumenfeld-Gantz, chimes in with Stephanie Miller.Stephanie Miller's Happy Hour Podcast · Jul 22, 2026
- What's Your Backstory?: Chapter's Cobi Blumenfeld-GantzThe Dr. Laura Podcast · Jul 13, 2026
- Chapter's Cobi Blumenfeld-Gantz: From Palantir To $3B Medicare DisruptorThe Upstarts Podcast · Apr 24, 2026
- In Conversation with Cobi Blumenfeld-Gantz, Cofounder & CEO of Chapter ($3B retirement company)We The Builders · Apr 16, 2026
- Jassy's Shareholder Letter, The Next AI Capability, 𝕏 Timeline Reactions | Saagar Enjeti, Joe Weisenthal, Kesava Kirupa Dinakaran, Brian Manning, Cobi Blumenfeld-Gantz, Changpeng Zhao, Tal HoffmanTBPN · Apr 9, 2026
- Chapter CEO Cobi Blumenfeld-Gantz - medicare complexity, $100B fraud and how tech can fix itSummation (formerly World of DaaS) · Jan 27, 2026
- LEMON DROP | Making Medicare Simple with Chapter CEO Cobi Blumenfeld-GantzThe Don Lemon Show · Nov 1, 2025
- Breaking the Medicare CartelThe Charlie Kirk Show · Aug 21, 2025
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