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    Digital Health (2026)

    Updated November 4, 2026

    Key takeaway

    Eric Topol is the clear consensus voice, listed first by ChatGPT and Gemini in both answers and first in one answer each from Copilot and Google AI Mode. Robert Wachter and John Halamka are the next most named, by ChatGPT and Gemini, and the rest of the list varies. Copilot describes Eric Topol as the most influential physician voice in digital health, linking AI, genomics and clinical practice through his work at Scripps Research, and Gemini cites a HealthTech influence ranking that puts him first.

    Mostly agree

    Eric Topol is the most influential voice in digital health

    Robert Wachter and John Halamka are leading voices

    Where they differ

    Who follows Topol

      Verdict

      All four engines name Eric Topol and ChatGPT, Gemini and Google AI Mode put him first in their answers. Copilot is split, with Topol first in one answer and Daniel Kraft first in the other.

      Top ranked

      Eric Topol is named in 20 of 26 answers, well ahead of Daniel Kraft in 11 and Bertalan Meskó in 9.

      Eric Topol
      100.00%47
      Bertalan Meskó
      83.33%28
      Daniel Kraft
      83.33%27
      John Halamka
      66.67%24
      David Rhew
      66.67%16
      Robert Wachter
      50.00%26
      John Nosta
      50.00%21
      Christina Farr
      50.00%28
      Karen DeSalvo
      50.00%17
      Micky Tripathi
      50.00%15

      How we rank

      This page is built from 46 answers by 5 AI engines. Tools are ordered by how often and how high the engines name them.

      Where each AI engine placed them

      ChatGPT, Copilot, Gemini, Google AI Mode and Perplexity all place Eric Topol first.

      NameGemini logo
      Eric Topol111
      Bertalan Meskó528
      Daniel Kraft449
      John Halamka323
      David Rhew7-7
      Robert Wachter2-2
      John Nosta-72
      Christina Farr8-4
      Karen DeSalvo6-6
      Micky Tripathi7-5

      Related questions

      What engines actually searched

      The sub-queries each engine actually searched before answering.

      Cited, but not mentioned

      11 sites cite this answer without naming anyone

      Full responses

      5 of 5 engines that answered. Full stored text as captured, with dashes shown as hyphens. Nothing is summarised.

      ChatGPT163 characters · November 3, 2026
      1. Eric Topol
      2. Judy Faulkner
      3. Robert Wachter
      4. John Halamka
      5. Daniel Kraft
      6. Bertalan Mesko
      7. David Rhew
      8. Micky Tripathi
      9. Karen DeSalvo
      10. Halle Tecco
      Gemini logo Gemini1,293 characters · November 3, 2026
      Google AI Mode3,595 characters · November 3, 2026

      Based on digital reach, academic citations, industry leadership, and active public commentary across the digital health and health tech landscape (as reflected in rankings like The HealthTech Signal), here are the top 10 individual people recognized as the most influential voices in digital health and health tech, ranked in order from most to least influential: Top 100 Most Influential People in HealthTech

      Eric Topol – Cardiologist, author, and Director of Scripps Research Translational Institute, widely known for championing the democratization of medicine and AI in healthcare. Top 100 Most Influential People in HealthTech

      ** Robert Wachter** – Professor and Chair of the Department of Medicine at UCSF and author of The Digital Doctor, a leading voice on the systemic implementation of electronic health records and digital transformation. Top 100 Most Influential People in HealthTech

      ** John Halamka** – President of Mayo Clinic Platform, a prominent leader in digital health strategy, health data interoperability, and clinical AI. Top 100 Most Influential People in HealthTech

      ** Karan Rajan** – Surgeon and prominent digital educator who reaches millions globally via accessible medical and health-technology commentary. Top 100 Most Influential People in HealthTech

      ** Micky Tripathi** – Assistant Secretary for Technology Policy and National Coordinator for Health Information Technology at the U.S. Department of Health and Human Services (HHS), shaping national health tech policy and data regulation. Top 100 Most Influential People in HealthTech

      ** Karen DeSalvo** – Chief Health Officer at Google, driving major initiatives at the intersection of large-scale AI, data science, and public health. Top 100 Most Influential People in HealthTech

      ** Christina Farr** – Principal investor and digital health journalist/analyst covering venture capital and the health tech startup ecosystem. Top 100 Most Influential People in HealthTech

      ** Bertalan Meskó** – Director of The Medical Futurist Institute, known globally for analyzing how emerging technologies like AI, genomics, and robotics reshape clinical practice. Top 100 Most Influential People in HealthTech

      ** Daniel Kraft** – Physician-scientist and Chair of NextMed Health, focusing on exponential and converging technologies in medicine. Top 100 Most Influential People in HealthTech

      ** David Rhew** – Global Chief Medical Officer and VP at Microsoft, leading clinical strategy for cloud and AI innovations in healthcare delivery. Top 100 Most Influential People in HealthTech

      Would you like me to expand on the specific contributions or recent focus areas (such as artificial intelligence or policy) for any particular person on this list?

      Perplexity1,125 characters · October 21, 2026
      1. Eric Topol
      2. Robert Wachter
      3. John Nosta
      4. Berci Meskó
      5. Daniel Kraft
      6. Christina Farr
      7. Natasha Loder
      8. Eugene Borukhovich
      9. Aashima Gupta
      10. Jeff Tangney

      This is an approximate ranking: the available results use different lists and methodologies, so they don’t establish a definitive cross-field top 10.(thehealthtechsignal.com)(consultclarity.org)(onalytica.com)(onalytica.com)(digitalsalutem.com)

      Copilot logo Copilot4,257 characters · October 10, 2026

      Top 10 most influential voices in digital health and health tech (ranked):

      1. Daniel Kraft – Physician-scientist, founder of Exponential Medicine, widely recognized as a leading futurist in digital health.

      2. Sumbul Desai – VP of Health at Apple, driving consumer health technology integration.

      3. Rafael Grossmann – Surgeon and pioneer in telemedicine and digital health innovation.

      4. Marcel Salathé – Expert in digital epidemiology and AI for public health.

      5. Karen DeSalvo – Chief Health Officer at Google, leading AI-driven health initiatives.

      6. Andre Esteva – AI researcher applying machine learning to cancer care.

      7. Grace Chang – Founder of Kintsugi, innovating AI-powered mental health solutions.

      8. Christian Lovis – Leader in healthcare IT and medical data science.

      9. Harvey Castro – Physician and author, prominent voice on AI in healthcare.

      10. Tobias Gantner – MedTech innovator focused on patient-centered digital solutions.

      Why these individuals stand out

      Key takeaway

      This ranking blends global visibility, organizational influence, and thought leadership. Figures like Kraft and Desai dominate due to their platforms (Apple, Exponential Medicine), while innovators like Esteva and Chang represent the next wave of AI-driven health tech.

      Would you like me to also map their primary focus areas (AI, telemedicine, consumer health, MedTech) into a comparison table so you can see at a glance who leads in which domain?

      Your question will include this prompt's context: Who are the most influential voices on Digital health / health tech?