No. 6 Clinician voices

Karan Rajan

Clinical Senior Lecturer and Surgeon, Imperial College London • United Kingdom

NHS surgeon utilizing digital media platforms to combat medical misinformation with science communications.

The Signal

He engages millions of subscribers with educational video content, explaining complex surgical procedures and testing health tracking devices to debunk inaccurate online medical wellness claims.

Who Karan Rajan is

NHS surgeon utilizing digital media platforms to combat medical misinformation with science communications.

He engages millions of subscribers with educational video content, explaining complex surgical procedures and testing health tracking devices to debunk inaccurate online medical wellness claims.

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At a glance

Role: Clinical Senior Lecturer and Surgeon
Organisation: Imperial College London
Platforms: YouTube, X, Podcast
Based in: United Kingdom, Europe

Influence Score 93.1editorial estimate, see how it is built

Reach (25% weight)97

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

Engagement (20% weight)96

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

Credibility (25% weight)91

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

Consistency (15% weight)95

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

Industry impact (15% weight)84

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

Scores are subjective editorial estimates compiled by our research desk from public profiles and published work. They are opinion, not measurement, and they are not a judgement of any person's character or ability.

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