10) Neil Floch

Specialising in advanced laparoscopic, foregut and bariatric operations, Neil Floch is one of America’s leading gastroendoscopic surgeons. He serves as the American Society of Metabolic and Bariatric Surgeons’ communications co-chairman, director of twitter social media and is president of the organisation’s Connecticut chapter.

Throughout his career, Floch has been an advocate for patient educational programs regarding weight loss, reflux, and endoscopic surgeries and has maintained a general surgery and bariatric private practice in Norwalk, Connecticut, since 1998.

Twitter: @NeilFlochMD

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Followers: 131,000

Tweets: 53,400

9) Lionel Reichardt

Well known in the blogosphere as Pharmageek, Lionel Reichardt is a prominent thought leader in the digital healthcare arena. Having spent 15 years in supply chain management in the pharmaceutical industry, Reichardt saw how much the industry began to change as the digital revolution took hold. Deciding to retrain with an MBA in digital marketing, he now offers consultancy services to health tech organisations.

Twitter: @LionelREICHARDT

Followers: 46,200

Tweets: 115,000

8) Alicia Staley

Medidata senior director of patient engagement Alicia Staley is a three-time cancer survivor committed to making a difference in the healthcare community. With over 20 years of experience in software design and information systems management, Staley works to engage patients in novel ways throughout the development lifecycle of new products. Having set up the Breast Cancer Social Media (BCSM) community, a volunteer organisation which aims to unite, educate and empower breast cancer survivors through social media, she is an expert in building powerful connections in patient communities.

Twitter: @stales

Followers: 15,100

Tweets: 114,000

7) Daniel Kraft

Stanford and Harvard-trained physician-researcher Daniel Kraft has over 25 years of experience in clinical practice, biomedical research and healthcare innovation. He has been Singularity University faculty chair for medicine & neuroscience since the organisation’s inception, and founded Exponential Medicine, an annual four-day conference for innovators from across the biomedical technology industry to explore the future of health and medicine.

Twitter: daniel_kraft

Followers: 46,600

Tweets: 12,000

6) Jane Sarasohn-Kahn

A self-described health economist, communicator and ‘trend weaver’, healthcare consultant Jane Sarasohn-Kahn works with stakeholders across the industry on strategy, scenario planning, policy reform and environmental analysis.

She founded strategic health consultancy THINK-Health, and is on the advisory boards of CanSurround, the Center for Health Policy and Media Engagement at George Washington University, the Health 2.0 Conference, healthbank, the CAQH U.S. Health Efficiency Index, Stupid Cancer, and WEGO Health. She is also on the board of The Clinic of Phoenixville.

Twitter: @healthythinker

Followers: 27,600

Tweets: 28,100

5) Joe Babaian

Joe Babaian is well known as the co-moderator and publisher of the Healthcare Leadership Blog #HCLDR. The #HCLDR community engages in a weekly tweetchat where they discuss a healthcare-related topic, establishing a virtual space where people who are passionate about medicine can discuss issues over social media. He has been recognised as a #HIT100 influencer in 2016 and 2017, and currently works as HealthcareVistas’ business development director.

Twitter: @JoeBabaian

Followers: 17,100

Tweets: 81,700

4) Sherry Reynolds

Nationally recognised eHealth evangelist Sherry Reynolds has over 20 years of experience in health informatics and business development. A thought leader, consultant and collaborative designer, Reynolds is the national director of the Center for Health Innovation. She curates a regular newsletter of health tech and policy news, with a focus on innovation and human-centred care.

Twitter: @Cascadia

Followers: 22,900

Tweets: 48,000

3) Eric Topol

Scripps Research Institute founder and director Eric Topol is a cardiologist, geneticist and digital medicine researcher. He is editor-in-chief of Medscape and theheart.org, and has published three books – The Patient Will See You Now, The Creative Destruction of Medicine, and Deep Medicine – on the med tech industry. Topol was one of the first researchers to question the efficacy of cardiovascular drug rofexocib, which was eventually withdrawn from the market as a result.

Twitter: @EricTopol

Followers: 116,000

Tweets: 20,200

2) John Nosta

Founder of digital health thinktank NOSTALAB, John Nosta is a major global influence in digital health. Nosta is a frequent contributor to Fortune, Forbes, Psychology Today and Bloomberg, and has given speeches at high-profile events with Health XL, South by Southwest and TEDx. Until 2014 he worked at Ogilvy CommonHealth, where he worked as a chief creative officer, chief strategic officer and finally president.

Twitter: @JohnNosta

Followers: 56,700

Tweets: 98,700

1) Evan Kirstel

Business-to-business thought leader Evan Kirstel helps his clients in the medical device sector and beyond grow their social media presence and use Twitter to generate social engagement, networking opportunities and sales. An expert in areas like blockchain, big data and artificial intelligence, Kirstel currently acts as ExiraHealth’s chief digital evangelist, having co-founded the company in 2017.

Followers: 249,000

Tweets: 820,000

Twitter: @evankirstel



The analysis provided by GlobalData is based on the number of company or organisation mentions, online engagement by influencers, and expert analysis.

A more detailed daily analysis is available for GlobalData subscribers.