# Elliott Green

> Elliott Green is the co-founder and CEO of Dandelion Health, a New York-based real-world data and clinical AI platform building multimodal, longitudinal datasets from a consortium of non-academic health systems. A former founding member of Oscar Health with a finance background, Green launched Dandelion in 2020 to give life science companies and AI developers unbiased, clinical-grade data - including the images, waveforms, and notes that make up most of medicine but are rarely used. The company closed a $14M Series A in 2026 and has launched a free AI validation service and a GLP-1 data library aimed at bringing precision medicine to cardiometabolic disease.

- **Role:** Co-Founder and CEO at Dandelion Health
- **Organizations:** Dandelion Health, Oscar Health, TrialSpark (now Formation Bio), Clarify Health
- **Nationality:** British
- **Education:** Economics and International Relations, University of Warwick
- **Known for:** Co-founded Dandelion Health, a multimodal real-world data and clinical AI platform, Founding member of Oscar Health; scaled its insurance business into 10 additional states, Built the Oscar-Cleveland Clinic joint venture in Ohio and the Oscar-Humana partnership in Nashville

## Career timeline

- **1998-2001** — Studied Economics and International Relations at the University of Warwick
- **2000s** — Started career in finance, developing skills in strategy, financial modeling and investment banking
- **2010s** — Founding member of Oscar Health; expanded its ACA insurance business into 10 additional states and built the Oscar-Cleveland Clinic JV and the Oscar-Humana partnership
- **2010s** — Head of Commercial Strategy and Partnerships at TrialSpark (now Formation Bio)
- **2010s** — SVP and General Manager at Clarify Health, focused on improving the patient journey through data
- **2020** — Co-founded Dandelion Health with Niyum Gandhi, Sendhil Mullainathan and Ziad Obermeyer
- **2024** — Dandelion Health launched a GLP-1 real-world data library and a free AI validation service
- **2026** — Dandelion Health closed a $14M Series A funding round

## Achievements

- Co-founded Dandelion Health, a multimodal real-world data and clinical AI platform
- Founding member of Oscar Health; scaled its insurance business into 10 additional states
- Built the Oscar-Cleveland Clinic joint venture in Ohio and the Oscar-Humana partnership in Nashville
- Launched what Dandelion describes as the first free validation service for healthcare AI safety and equity
- Launched the GLP-1 Data Library covering longitudinal records for millions of patients, including 200,000 on GLP-1 agonists
- Raised a $14M Series A for Dandelion Health in 2026

## Latest updates

- **2026-05** — Dandelion Health closed a $14M Series A to expand pharma partnerships, deepen data infrastructure and grow its commercial and scientific teams.
- **2024-05** — Dandelion Health launched its GLP-1 Data Library, a multimodal real-world dataset built around the GLP-1 drug class.

## Links

- Website: https://dandelionhealth.ai
- LinkedIn: https://www.linkedin.com/in/elliott-green-98433b2/
- YouTube: https://www.youtube.com/watch?v=k2CgClnz_-Y

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Profile page: https://yespress.io/elliott-green
Published by YesPress — https://yespress.io
Last updated: 2026-07-17