Summation (formerly World of DaaS) Chapter CEO Cobi Blumenfeld-Gantz - medicare complexity, $100B fraud and how tech can fix it
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Jan 27, 2026 Cobi Blumenfeld-Gantz, co-founder and CEO of Chapter and former Palantir government team member, builds AI tools to help seniors navigate Medicare. Conversation covers why Medicare enrollment is confusing, how $100B+ fraud happens, the mess of 24,000 plan variants, and how AI and better data can verify networks and simplify choices.
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Medicare Requires Active Enrollment
- Medicare enrollment is not automatic; seniors must actively sign up and choose supplemental coverage.
- Missing the enrollment window can impose lifetime premiums that compound roughly 1% per month late.
Medicare Fraud Is Massive And Concentrated
- Medicare fraud is pervasive and often comes from a small number of bad actors and DME scams.
- Estimates put improper spend at roughly 10–15% of total, easily exceeding $100 billion annually.
Big Consultancies Repeat Failed Gov't Tech Patterns
- CMS repeatedly makes the same government tech mistakes by building complex in-house data systems via big consultancies.
- That approach often yields costly, unsuccessful projects instead of practical, open infrastructure.