What if the most influential voices in healthcare are not the most visible ones?

PEER IMPACT reveals how medical knowledge now travels between healthcare professionals online, and why traditional measures of influence often miss what matters most.

Drawing on over a decade of listening to clinicians in professional conversation, this book shows why visibility is not the same as peer impact, how to recognise the signals most teams miss, and why listening must come before identification.

Buy on Amazon – Available in hardback and Kindle eBook

Read: Why I wrote PEER IMPACT (and what I’ve learned already)

Buy on Amazon
Peer Impact Field Guide

Free Download: The Peer Impact Field Guide

A practical 2-page reference for Medical Affairs and Marketing teams working with Digital Opinion Leaders.

Inside you’ll find:

  • The three signals most teams miss when identifying peer impact
  • How to start with listening, not lists
  • The identify-engage-activate cycle that sustains engagement
  • Four questions to ask before your next DOL project

 

Download the field guide

What Leaders are saying

PEER IMPACT offers a timely and thoughtful reframing of influence in medicine, grounded in how clinicians truly learn from one another. Daniel Ghinn’s emphasis on listening, trust, and empathy provides valuable insight for anyone seeking to engage healthcare professionals in a way that is both meaningful and respectful.

Allyson Ocean, M.D., Medical Oncologist, New York

 

In today’s pharma reality, influence and decision making are increasingly being shaped by online conversations. PEER IMPACT provides an excellent starting point for anyone who wants a deeper understanding of what drives influence in modern healthcare.

Kasper Tarp Mortensen, Director, Medical, Marketing and Regulatory Affairs, Novo Nordisk

 

PEER IMPACT is an invaluable insight into the paradigm shift driving how healthcare professionals now learn from each other and keep up to date.

Dr Kevin Fernando, GP, Scotland

About the Author

Daniel Ghinn is the founder of CREATION.co, an insights product company serving pharmaceutical and life sciences organisations. His work helps teams understand how professional knowledge travels between peers and engage more thoughtfully with scientific communities.

Over twelve years ago, Daniel introduced and articulated the concept of Digital Opinion Leaders (DOLs), helping pharmaceutical teams move beyond visibility-based assumptions toward a nuanced understanding of peer impact. He has worked with global pharmaceutical organisations, medical device companies, and international health bodies seeking to align with how professionals actually learn from one another.

Daniel led the development of CREATION Pinpoint, an AI-supported platform that identifies and analyses healthcare professional networks at scale. Through this work, his team has listened to billions of social media interactions and built one of the world’s largest curated datasets of online HCP profiles.

He hosts the Better Listening for Better Health podcast, exploring how knowledge, experience, and trust circulate between peers in clinical practice.

Daniel’s work is guided by a belief that influence in science-led professions is not something to be manufactured, but something to be understood, respected, and supported with care. PEER IMPACT distils more than a decade of insights about how influence actually operates in healthcare.

Connect with Daniel:

LinkedIn

Better Listening for Better Health Podcast