About us
Built by researchers, engineers, and clinicians who believe every patient deserves access to the best oncology knowledge in the world.
Why we built Radical Health
When you or someone you love is diagnosed with cancer, you become a researcher overnight. You read every study. You call every specialist. You lie awake wondering if you missed something.
We built Radical because no one should have to fight alone. We've given your corner a new teammate — one who has actually read every study, who has seen how eleven million patients were treated at the world's best hospitals, and whose only job is you.
This isn't a chatbot. It's a real expert report, written for you, grounded in your record. And if you want to talk to a human, a nurse answers in minutes.
Built with
Meet the Radical Health team.
Simone Korsgaard Jensen
Founder & Chief Executive Officer
Two-time founder who launched their first company at age 18 and later built a mathematical oncology startup. Two-time national champion tennis player and student athlete. Top graduate with a Bachelor of Science and Master of Science in Mathematics from top university in Scotland.
Bryan Wei Zhi Tan
Chief Technology Officer
Former founder in synthetic healthcare data and UK Medical Research Council researcher in multiomic causal inference. Military Intelligence veteran and #1 ranked cadet. Award-winning researcher for new target discovery in Alzheimer's therapeutics. #1 ranked undergraduate from Cambridge University (Bio & AI).
Heidi Anderson Hupe
Commercial and Marketing
20+ years leading commercial growth across healthcare, tech, and media. Strategic board director and advisor for PE & VC-backed businesses with numerous exits. Prev. executive at Time Inc, WebMD, and Livongo (Teladoc); expert in disruptive GTM strategies.
Louis Zhao
Product and Engineering
Former founder in spatial computing infrastructure and served as President of NeuroNYC, New York's largest neurotechnology hub for leading researchers and investors. Dual Bachelor of Science and Master of Science in Computer Science and Biomedical Engineering at Columbia University.
Tom Joy
Product and Engineering
Two-time founder including GirlsWhoML, a global nonprofit expanding access for women in ML. Previously built safe AI perception models for self-driving cars; holds three patents and multiple publications at NeurIPS, ICLR, CVPR, and SIAM. Doctor of Philosophy in multimodal AI from the University of Oxford.
Kalind Thakkar
Product and Engineering
Core founding team of Gemini Tool Use at Google DeepMind and official contributor to the Gemini 1 paper. Architect of key Gemini features including YouTube and Google Photos integrations. Created evals for quantitative problem solving and rebuilt SFT & RLHF pipelines.
Our clinical advisors
Radical oncologists who define the field.
Radical Health wasn't built in isolation. From the beginning, we developed the platform alongside practicing oncologists who write the guidelines, run the trials, and set the standard of care.
Yan Li, MD
National Chair, GI Oncology
@ Kaiser Permanente
Amol Narang, MD
Medical Director
@ Johns Hopkins · NCCN Committee
Michael Gensheimer, MD
Clinical Associate Professor, Radiation Oncology
@ Stanford University
Joel Hecht, MD
Director, GI Oncology
@ UCLA · NCCN Committee
Press
Radical Health in the news.
This Khosla Ventures-backed start up is using AI to personalize cancer care
Radical Health is building what it calls the most comprehensive AI ever applied to a cancer patient's case — combining clinical records, research, and real-world outcomes.
Read the storyMayo Clinic Platform_Accelerate announces latest cohort of AI startups
Selected for the prestigious Mayo Clinic Platform accelerator, Radical Health joins a cohort of companies using AI to transform clinical care.
Read the storyWilson Sonsini Advises Radical Health on $5 Million Pre-Seed Funding
The $5M pre-seed round, backed by Khosla Ventures and others, will accelerate the buildout of Radical's AI oncology platform.
Read the storyInvestors
Khosla Ventures
Tier-1 VC · Sand Hill Road
Mayo Clinic Platform
Strategic Healthcare Partner
Y Combinator
W24 Batch
When the problem is cancer, you want the best people in the room. So we brought them together.
See what their expertise makes possible.
See how it works