Redefining Healthcare, One Member at a Time

Preemptive Health was founded on a simple belief: healthcare should anticipate, not react. We combine cutting-edge science with personal human care to keep people well—before illness takes hold.

Why We Started

The healthcare system was built to treat illness, not preserve wellness. It waits until something goes wrong, then charges you for the fallout. That’s backwards.

We started Preemptive Health to flip the model—combining predictive science with concierge-level care. Our mission is to keep people well, not patched up. We believe healthcare should be proactive, personal, and deeply human.

Our mission is simple: To power the shift to preemptive health—and deliver the most exceptional member experience in all of healthcare.

Guided by Experience. Inspired by Innovation.

Our leadership team brings together decades of expertise across medicine, data science, and digital health. Each has built their career reimagining what healthcare can be—and now they’ve come together to create something extraordinary.

  • Jamien McCullum

    CEO, Co-Founder
    Seasoned digital health entrepreneur with a track record of building and scaling transformative healthcare companies.

  • Matt Whitehill, PhD

    CTO, Co-Founder
    Computer science PhD specializing in deep learning, formerly at University of Washington, focused on unlocking predictive healthcare through AI.

  • Jorge Sanchez, MD

    Medical Director
    Former Medical Director at Carbon Health and Chief Medical Officer at Alertive Healthcare. Faculty at Yale School of Medicine, with expertise in population health.

  • Leon Gatys, PhD

    Co-Founder
    Machine learning pioneer and former member of Apple’s Health AI team. Known globally for breakthroughs in neural networks and computational neuroscience.

  • David Maron, MD

    Medical Advisor
    Director of Preventative Cardiology at Stanford

  • Nirav Shah, MD

    Medical Advisor
    CEO and Founder of Alertive Health, acquired by Carbon Health; Board certified in neurology and stroke medicine

  • Kate McLean, MD

    Medical Advisor
    Board certified OBGYN, CMO Evvy, Clinical Dir. Ro, CMO Quilted Health

  • Meredith Mathews, MD

    Medical Advisor
    Chief Medical Officer Blue Shield of California (retired)

  • Benjamin Horne, MD

    Medical Advisor
    Director of Cardiovascular and Genetic Epidemiology Intermountain Health, adjunct prof. Stanford Univ. Medicine

  • George Ribaroff, MD

    Board Member
    Healthcare venture capital investor and former physician w/NHS

  • Jing MacKenzie, MD

    Medical Advisor
    Permanente Group Director, previously Aetna, Phillips Healthcare

  • Oren Etzioni, PhD

    Advisor
    Former CEO of Paul Allen Institute for AI in Seattle. Madrona Venture Group partner; Technical Director at AI2 Incubator

  • Shwetak Patel, PhD

    ML Advisor
    Head of A.I. health @ Google, on-device deep learning expert (McCarthur Genius Award), Principal Investigator Ubiquitous Comp Lab

  • Subbu Venkatraman, PhD

    ML Advisor
    Head of digital health research Samsung, CTO, Eko Health, Fitbit, Qualcomm

  • Anthony Watson

    Advisor
    20-year FDA regulatory affairs executive focused on software as medical device. Pear Therapeutics

More Than a Clinic. A Movement.

We believe the future of healthcare isn’t about hospitals or insurance companies—it’s about people. Every member deserves care that is anticipatory, personal, and delivered with humanity. Preemptive Health exists to make that future a reality today.

Join Us in Redefining Healthcare →