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Web address
Slogan Talk real world medicine
Type of site
Social network
Available in English, Spanish
Users 465,000+

SERMO is an online community for physicians open exclusively to licensed M.D.s and D.O.s in the United States, and 8 other English and Spanish-speaking countries. SERMO is a place for physicians to post observations and questions about clinical issues and hear other doctors' opinions. The community considers itself both a social 'doctor's lounge' as well as the 'home of medical crowdsourcing' providing opportunities for doctors to collaborate on anonymous patient cases, and participate in surveys.


SERMO enables medical crowdsourcing and knowledge sharing. In 2014, 3,500 patient cases were posted by doctors in the US. These cases were viewed 700,000 times and received 50,000 comments. Most patient cases get responses within 1.5 hours and are resolved within 24 hours.[1]

SERMO has nearly 500,000 verified and credentialed members[2][3] in the US, UK, Canada, Australia, South Africa, Ireland, Spain, Mexico and New Zealand.[4]

SERMO runs opinion polls twice a week to capture and report on the sentiment of physicians on current topics. These are often reported on in the press.[2][5][6]


SERMO was founded by Dr. Daniel Palestrant in 2006 and acquired by World One, Inc. in 2012. The site was originally imagined as an adverse effect reporting system. Reporting systems failed the US healthcare system during Merck's 2004 Vioxx (Rofecoxib) recall, which removed Vioxx, a Cox-2 inhibitor, from the market due to an increased risk of myocardial infarction (heart attack). Palestrant believed that an online forum could collect and filter these types of observations more effectively than existing systems.[7] The site developed into a discussion board covering a variety of non-clinical and clinical topics. The physician founders left in 2012 to start another business venture. SERMO was acquired by WorldOne, Inc. in July 2012 and rebranded to SERMO in 2014.[8] Following the rebranding, the community launched into 6 English-speaking countries including Australia, Canada, Ireland, New Zealand, South Africa, and the United Kingdom.[4] In September, 2014 SERMO launched in Spain and Mexico.[9]


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