The Signal Index

Top 100 Most Influential People in HealthTech

The clinicians, founders, investors and researchers shaping how healthcare thinks about technology, ranked by a transparent Influence Score.

A new edition every month

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How the Influence Score works

Reach25%

Audience size across LinkedIn, X, YouTube, podcasts and newsletters.

Engagement20%

How much the audience actually reacts, comments, shares and subscribes.

Credibility25%

Clinical, research, operating or investing track record behind the commentary.

Consistency15%

Publishing cadence and how reliably they show up with original work.

Industry impact15%

Whether decision makers, policy and capital actually move on what they say.

Scores are compiled by our research desk from public profiles, published work, speaking records and audience signals, then refreshed monthly. Figures are estimates; if something looks wrong, .

#NameCategoryPlatformsScore

1Eric TopolDirector and Professor of Molecular Medicine, Scripps ResearchClinician voices • United States • Score 97.2Clinician voicesX, Substack, Newsletter97.2
2Robert WachterProfessor and Chair, UCSF Department of MedicineClinician voices • United States • Score 94.3Clinician voicesX, LinkedIn94.3
3Karan RajanClinical Lecturer and Surgeon, Imperial College LondonClinician voices • United Kingdom • Score 94Clinician voicesYouTube, LinkedIn94
4Atul GawandeSurgeon, Writer, and Public Health Leader, Harvard T.H. Chan School of Public HealthClinician voices • United States • Score 93.8Clinician voicesX, LinkedIn93.8
5Ashish JhaDean of School of Public Health, Brown UniversityPolicy & regulation • United States • Score 93.7Policy & regulationX, LinkedIn, Newsletter93.7
6Blake MaddenFounder, HospitalogyAnalysts & journalists • United States • Score 93.1Analysts & journalistsNewsletter, LinkedIn, X93.1
7John HalamkaPresident, Mayo Clinic PlatformClinician voices • United States • Score 92.7Clinician voicesLinkedIn, Newsletter92.7
8Stephane BancelChief Executive Officer, ModernaFounders & operators • United States • Score 92.3Founders & operatorsLinkedIn92.3
9Hemant TanejaCEO and Managing Director, General CatalystInvestors • United States • Score 91.7InvestorsLinkedIn, X91.7
10Stephen KlaskoExecutive in Residence, General CatalystClinician voices • United States • Score 91.5Clinician voicesLinkedIn91.5
11Megan ZweigChief Operating Officer, Rock HealthAnalysts & journalists • United States • Score 91.4Analysts & journalistsLinkedIn, Newsletter, Podcast91.4
12Daphne KollerFounder and Chief Executive Officer, InsitroFounders & operators • United States • Score 91.3Founders & operatorsLinkedIn, X91.3
13Jared DashevskyCo-Founder, Healthcare HuddleAnalysts & journalists • United States • Score 91.2Analysts & journalistsNewsletter, LinkedIn, X91.2
14Nisha MehtaRadiologist and Founder, Physician Side GigsClinician voices • United States • Score 91.1Clinician voicesLinkedIn, Newsletter91.1
15Zubin DamaniaInternist and Founder, ZdoggMDClinician voices • United States • Score 91.1Clinician voicesPodcast, YouTube91.1
16Julie YooGeneral Partner, Andreessen HorowitzInvestors • United States • Score 90.9InvestorsLinkedIn, X, Podcast90.9
17Christina FarrVenture Partner, OMERS VenturesInvestors • United States • Score 90.8InvestorsSubstack, X, LinkedIn90.8
18Nikhil KrishnanFounder and Analyst, Out-Of-PocketAnalysts & journalists • United States • Score 90.8Analysts & journalistsSubstack, X, LinkedIn90.8
19Robert CaliffCommissioner of Food and Drugs, Food and Drug AdministrationPolicy & regulation • United States • Score 90.7Policy & regulationX, LinkedIn90.7
20Bertalan MeskoDirector and Medical Futurist, The Medical Futurist InstituteClinician voices • Hungary • Score 90.3Clinician voicesLinkedIn, YouTube, Newsletter90.3
21Matthew HoltFounder, The Health Care BlogAnalysts & journalists • United States • Score 90.2Analysts & journalistsSubstack, X, LinkedIn90.2
22Rebecca LoveFounder and Nurse Executive, Commission for Nurse ReimbursementClinician voices • United States • Score 90.2Clinician voicesLinkedIn, Podcast90.2
23Peter PronovostChief Quality and Clinical Transformation Officer, University HospitalsClinician voices • United States • Score 89.9Clinician voicesLinkedIn89.9
24Lisa SuennenManaging Partner, Venture ValkyrieInvestors • United States • Score 89.8InvestorsLinkedIn, Substack, Podcast89.8
25Rasu ShresthaExecutive Vice President and Chief Innovation Officer, Advocate HealthClinician voices • United States • Score 89.7Clinician voicesLinkedIn, X89.7
26Kevin O'LearyCo-Founder, HealthTech NerdsAnalysts & journalists • United States • Score 89.6Analysts & journalistsNewsletter, LinkedIn, X89.6
27Vijay PandeGeneral Partner, Andreessen HorowitzInvestors • United States • Score 89.6InvestorsLinkedIn, X, Podcast89.6
28Vineeta AgarwalaGeneral Partner, Andreessen HorowitzInvestors • United States • Score 89.5InvestorsLinkedIn, X, Podcast89.5
29Kate RyderFounder and Chief Executive Officer, Maven ClinicFounders & operators • United States • Score 89.4Founders & operatorsLinkedIn89.4
30Steve KrausPartner, Bessemer Venture PartnersInvestors • United States • Score 89.2InvestorsLinkedIn, X89.2
31John WhyteChief Executive Officer, American Medical AssociationPolicy & regulation • United States • Score 89Policy & regulationLinkedIn, X, Podcast89
32Deena ShakirGeneral Partner, Lux CapitalInvestors • United States • Score 88.6InvestorsLinkedIn, X88.6
33Glen TullmanChief Executive Officer, TranscarentFounders & operators • United States • Score 88.6Founders & operatorsLinkedIn88.6
34Joseph KvedarProfessor and Editor in Chief, Harvard Medical SchoolResearchers & academics • United States • Score 88.6Researchers & academicsLinkedIn, X, Newsletter88.6
35Micky TripathiAssistant Secretary for Technology Policy, Department of Health and Human ServicesPolicy & regulation • United States • Score 88.4Policy & regulationLinkedIn, X88.4
36Morgan CheathamPartner, Bessemer Venture PartnersInvestors • United States • Score 88.4InvestorsLinkedIn, X88.4
37Toyin AjayiCofounder and Chief Executive Officer, Cityblock HealthFounders & operators • United States • Score 88.4Founders & operatorsLinkedIn, X88.4
38Daniel KraftFounder and Chair, NextMed HealthClinician voices • United States • Score 88.3Clinician voicesLinkedIn, X88.3
39David RhewGlobal Chief Medical Officer, MicrosoftClinician voices • United States • Score 88.3Clinician voicesLinkedIn, X88.3
40Mona FloresGlobal Head of Medical AI, NVIDIAClinician voices • United States • Score 88.2Clinician voicesLinkedIn88.2
41Shikha JainAssociate Professor of Medicine, University of Illinois ChicagoClinician voices • United States • Score 88.1Clinician voicesLinkedIn, X88.1
42Casey RossNational Correspondent, STATAnalysts & journalists • United States • Score 87.9Analysts & journalistsX, Newsletter87.9
43Bijan SalehizadehManaging Partner, NaviMed CapitalInvestors • United States • Score 87.7InvestorsLinkedIn, X87.7
44Lisa FitzpatrickFounder and Chief Executive Officer, Grapevine HealthClinician voices • United States • Score 87.7Clinician voicesLinkedIn, YouTube87.7
45Michael ChernySenior Managing Director, Leerink PartnersAnalysts & journalists • United States • Score 87.7Analysts & journalistsLinkedIn87.7
46Chris GibsonCofounder and Chief Executive Officer, RecursionFounders & operators • United States • Score 87.6Founders & operatorsLinkedIn, X87.6
47Harlan KrumholzProfessor of Medicine and Director, Yale UniversityResearchers & academics • United States • Score 87.6Researchers & academicsLinkedIn, X87.6
48Kevin PhoFounder and Editor, KevinMDAnalysts & journalists • United States • Score 87.6Analysts & journalistsLinkedIn, X, Podcast87.6
49Sanjeev AroraDirector and Founder of Project ECHO, University of New Mexico School of MedicineClinician voices • United States • Score 87.6Clinician voicesLinkedIn87.6
50Lynne Chou O'KeefeFounder and Managing Partner, Define VenturesInvestors • United States • Score 87.5InvestorsLinkedIn, X87.5
51Jonathan BushFounder and Chief Executive Officer, Zus HealthFounders & operators • United States • Score 87.4Founders & operatorsLinkedIn, X87.4
52Sunny KumarPartner, GSR VenturesInvestors • United States • Score 87.4InvestorsLinkedIn, X87.4
53Amy AbernethyCofounder, Highlander HealthPolicy & regulation • United States • Score 87.3Policy & regulationLinkedIn, X87.3
54Arghavan SallesClinical Associate Professor, Stanford UniversityClinician voices • United States • Score 87.3Clinician voicesX, LinkedIn87.3
55Geeta NayyarAdvisor and Author, Independent ConsultantClinician voices • United States • Score 87.3Clinician voicesLinkedIn, Podcast87.3
56Karen DeSalvoChief Health Officer, GoogleAI & data science • United States • Score 87.3AI & data scienceLinkedIn, X87.3
57Peter LeeCorporate Vice President of Research, MicrosoftAI & data science • United States • Score 87.3AI & data scienceLinkedIn, X87.3
58Ami BhattChief Innovation Officer, American College of CardiologyClinician voices • United States • Score 87.2Clinician voicesLinkedIn, X87.2
59Dr. Fiona PathirajaManaging Partner, Crista Galli VenturesInvestors • United Kingdom • Score 87.1InvestorsLinkedIn, X, Substack87.1
60Michael GreeleyCo-Founder and Partner, Flare Capital PartnersInvestors • United States • Score 87InvestorsLinkedIn, X87
61Sari KaganoffGeneral Manager, Rock Health AdvisoryAnalysts & journalists • United States • Score 86.5Analysts & journalistsLinkedIn, Newsletter86.5
62Shafi AhmedConsultant General and Colorectal Surgeon, Barts Health NHS TrustClinician voices • United Kingdom • Score 86.5Clinician voicesLinkedIn, X86.5
63Devin SinghPediatric Emergency Physician and CEO, Hero AIClinician voices • Canada • Score 86.4Clinician voicesLinkedIn86.4
64Nigam ShahChief Data Scientist, Stanford Health CareAI & data science • United States • Score 86.4AI & data scienceLinkedIn, X86.4
65Priya BathijaFounder, Nyoo HealthAnalysts & journalists • United States • Score 86.4Analysts & journalistsLinkedIn, Newsletter86.4
66Ashish AtrejaChief Information and Digital Health Officer, UC Davis HealthClinician voices • United States • Score 86.3Clinician voicesLinkedIn86.3
67Sean DuffyCofounder and Chief Executive Officer, Omada HealthFounders & operators • United States • Score 86.3Founders & operatorsLinkedIn, X86.3
68Malay GandhiPartner, Define VenturesInvestors • United States • Score 86.2InvestorsLinkedIn, X, Substack86.2
69Ambar BhattacharyyaManaging Director, Maverick VenturesInvestors • United States • Score 86InvestorsLinkedIn, X86
70Bill TarantoPresident, Merck Global Health Innovation FundInvestors • United States • Score 85.8InvestorsLinkedIn, X85.8
71Keith DreyerChief Data Science Officer, Mass General BrighamClinician voices • United States • Score 85.8Clinician voicesLinkedIn85.8
72Isaac KohaneChair of Biomedical Informatics, Harvard Medical SchoolResearchers & academics • United States • Score 85.6Researchers & academicsLinkedIn, X85.6
73Mario SchlosserCofounder and President of Technology, Oscar HealthFounders & operators • United States • Score 85.6Founders & operatorsLinkedIn, X85.6
74Rob CoppedgeCEO, Echo Health VenturesInvestors • United States • Score 85.6InvestorsLinkedIn, X, Podcast85.6
75Harvey CastroPhysician and AI Medicine Advisor, Independent ConsultantClinician voices • United States • Score 85.1Clinician voicesLinkedIn, Podcast, Newsletter85.1
76John NostaFounder, NostaLabAI & data science • United States • Score 85.4AI & data scienceLinkedIn, X85.4
77Christopher LonghurstChief Medical and Digital Officer, UC San Diego HealthClinician voices • United States • Score 85.3Clinician voicesLinkedIn, X85.3
78Gillian StrudwickChief Clinical Information Officer, Centre for Addiction and Mental HealthClinician voices • Canada • Score 85.3Clinician voicesLinkedIn85.3
79Rafael GrossmannSurgeon and Healthcare Futurist, Portsmouth Regional HospitalClinician voices • United States • Score 85.2Clinician voicesLinkedIn, X85.2
80Stephen BuckCo-Founder, Courage HealthAnalysts & journalists • United States • Score 85.2Analysts & journalistsNewsletter, LinkedIn, X85.2
81Sofia GuerraPartner, Bessemer Venture PartnersInvestors • United States • Score 85.6InvestorsLinkedIn, X85.6
82Shiv RaoCofounder and Chief Executive Officer, AbridgeFounders & operators • United States • Score 85.1Founders & operatorsLinkedIn, X85.1
83Eren BaliCofounder and Chief Executive Officer, Carbon HealthFounders & operators • United States • Score 85Founders & operatorsLinkedIn, X85
84Gil BasheChair, Global Health and Purpose, FINN PartnersAnalysts & journalists • United States • Score 85Analysts & journalistsLinkedIn, Newsletter85
85Daisy WolfPartner, Andreessen HorowitzInvestors • United States • Score 84.8InvestorsLinkedIn, X84.8
86Jessica DaMassaHost and Executive Producer, WTF HealthAnalysts & journalists • United States • Score 84.7Analysts & journalistsYouTube, LinkedIn, Podcast84.7
87Andrew ToyChief Executive Officer, Clover HealthFounders & operators • United States • Score 84.4Founders & operatorsLinkedIn, X84.4
88Zachariah ReitanoCofounder and Chief Executive Officer, RoFounders & operators • United States • Score 84.4Founders & operatorsLinkedIn, X84.4
89Julia CheekFounder and Chief Executive Officer, Everly HealthFounders & operators • United States • Score 84.3Founders & operatorsLinkedIn84.3
90Margaret LozovatskySenior Vice President and CCIO, Novant HealthClinician voices • United States • Score 84.3Clinician voicesLinkedIn84.3
91Julia Adler-MilsteinProfessor and Division Chief, University of California, San FranciscoResearchers & academics • United States • Score 84.2Researchers & academicsLinkedIn, X84.2
92Umbereen S. Nehal, MD, MPH, MBAPhysician Executive and Medical AI Strategist, Independent; former MassHealth Chief Medical OfficerClinician voices • United States • Score 84.1Clinician voicesLinkedIn, Substack84.1
93David BlumenthalProfessor of the Practice of Medicine, Harvard UniversityPolicy & regulation • United States • Score 84.1Policy & regulationLinkedIn, X84.1
94Suchi SariaFounder and Chief Executive Officer, Bayesian HealthAI & data science • United States • Score 84.1AI & data scienceLinkedIn, X84.1
95Aneesh ChopraPresident and Cofounder, CareJourneyPolicy & regulation • United States • Score 83.9Policy & regulationLinkedIn, X83.9
96Carolyn WitteCofounder and Chief Executive Officer, TiaFounders & operators • United States • Score 83.9Founders & operatorsLinkedIn83.9
97Saira GhafurDigital Health Lead, Institute of Global Health InnovationClinician voices • United Kingdom • Score 83.9Clinician voicesLinkedIn, X83.9
98Michelle LongmireCofounder and Chief Executive Officer, MedableFounders & operators • United States • Score 83.8Founders & operatorsLinkedIn83.8
99Atul ButteDirector of Bakar Computational Health Sciences, University of California, San FranciscoAI & data science • United States • Score 83.7AI & data scienceLinkedIn, X83.7
100Elina BerglundCofounder and Chief Executive Officer, Natural CyclesFounders & operators • Sweden • Score 83.4Founders & operatorsLinkedIn83.4

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