1. Mike Ryan
Twitter Followers: 295k
The chairman of American Heart Association not only posts about how to keep a healthy heart but also gives useful insights on how one can create a successful business in health. He has a crazy following of 295k on Twitter which makes him the biggest influencer in healthcare.
![20 Biggest Influencers in Healthcare](https://imonkey-blog.imgix.net/blog/wp-content/uploads/2017/03/31012955/shutterstock_504454465-750x532.jpg?auto=fortmat&fit=clip&expires=1756598400&width=480&height=340)
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