The Signal Directory

HealthTech executives worth following

Founders, investors, health system and payer leaders, policy people and analysts. Filter by the part of the industry they work in and where they post.

Looking for practising clinicians instead? Open the clinician directory.

Curtis Langlotz, MD, PhD

Director of Stanford AIMI Center, Stanford University

Clinical AI

Readers get research insights on medical imaging AI, updates on academic radiology AI evaluations, and regular summaries of the field's clinical safety benchmarks.

Medical Imaging AI / Clinical Validation / Radiology Research

Best for: Radiologists and medical imaging AI researchers.

Karandeep Singh, MD, MMSc

Chief Health AI Officer, UC San Diego Health

Clinical AI

Readers get updates on clinical AI governance, practical advice on deploying machine learning tools at the bedside, and critical evaluations of health technology.

Clinical AI Governance / Bedside Implementation / EHR Integration

Best for: Clinical informaticians and hospital IT leaders.

Keith Dreyer, DO, PhD

Chief Data Science Officer, Mass General Brigham

Clinical AI

Readers obtain deep insights into enterprise AI deployment in large hospital networks, clinical validation frameworks, and national policies on imaging AI standards.

Enterprise AI / Clinical Imaging Standards / Healthcare Quality

Best for: Health system executives and imaging technologists.

Leo Anthony Celi, MD, MPH

Principal Research Scientist, MIT

Clinical AI

Readers receive global perspectives on clinical database transparency, machine learning bias, and international research collaborations utilizing open-source medical data resources.

Open-Science Data / Global Clinical AI / Algorithmic Transparency

Best for: Open-science advocates and global health researchers.

Marzyeh Ghassemi, PhD

Associate Professor, MIT

Clinical AI

Readers get detailed insights on machine learning robustness, algorithmic fairness in clinical datasets, and academic research focused on equitable health technology development.

Machine Learning Robustness / Algorithmic Fairness / Clinical Datasets

Best for: Computer scientists and medical ethics professionals.

Matthew Lungren, MD, MPH

Chief Medical Officer, Nuance Communications

Clinical AI

Followers gain industry perspectives on generative AI in medicine, enterprise-scale healthcare cloud computing tools, and translation of research into clinical products.

Generative Healthcare AI / Enterprise Health Technology / Product Translation

Best for: Digital health developers and technology leaders.

Michael Pencina, PhD

Chief Data Scientist, Duke Health

Clinical AI

Followers get authoritative updates on health AI evaluation frameworks, algorithm registry standards, and institutional governance structures designed to ensure safe, equitable AI.

AI Evaluation Standards / Health Algorithm Registries / Responsible AI

Best for: Healthcare compliance officers and AI governance leads.

Nigam Shah, MBBS, PhD

Chief Data Scientist, Stanford Health Care

Clinical AI

Followers receive academic and practical perspectives on using electronic health record data to train clinical AI models, safe deployment strategies, and health AI governance.

Clinical Data Science / Informatics / AI Deployment Governance

Best for: Informatics professionals and clinical data scientists.

Suchi Saria, PhD

Founder and CEO, Bayesian Health

Clinical AI

Readers learn about real-world clinical AI deployment, methods for reducing diagnostic errors, and building reliable artificial intelligence tools for critical care environments.

Diagnostic AI / Critical Care / AI Product Development

Best for: Digital health founders and intensive care clinicians.

Ziad Obermeyer, MD

Associate Professor of Health Policy, UC Berkeley

Clinical AI

Followers receive rigorous analysis of algorithmic bias in healthcare, evaluations of clinical machine learning models, and methods to make clinical algorithms more equitable.

Algorithmic Bias / Machine Learning Equity / Clinical Policy

Best for: Health policy researchers and clinical data scientists.

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