The social media for health

Tell™ was founded by a practicing physician and a communications engineer with the mission to be the world's go-to source for trusted health information. We created Tell™ to be the online community where respected and verified clinical experts share their knowledge for the benefit of everyone, everywhere.

Meet the Founders

Nikola Nestorov
Nikola Nestorov

Nikola is an IT engineer and IEEE Senior Member. His experience spans over five generations of communications technology. As a former Head of Internet of Things Strategy at CK Hutchison Three and member of the Telefonica Global Design Council, Nikola gets impactful technology.

Alan Gaffney
Dr. Alan Gaffney

Alan is an attending intensive care physician. He draws from a wealth of international experience working in Dublin, London, Sydney and New York where he was the Associate Medical Director of the Cardiothoracic ICU at Columbia University Medical Center.

Medical Advisory Board

Heather Giannini

Heather is a physician specializing in internal medicine, pulmonary medicine and critical care at the Hospital of the University of Pennsylvania, Penn Presbyterian Medical Center.

Christopher Worsham

Christopher is a physician specializing in internal medicine, pulmonary medicine, and critical care medicine at Massachusetts General Hospital, and a public health researcher on the faculty of Harvard Medical School.

Marilynn Parker

Marilynn is a National Certified School Nurse for Chicago Public Schools and a Family Nurse Practitioner.

Peter Kahn

Peter is a physician specializing in pulmonary and critical care medicine at Yale. His research has focused on health policy with a particular interest in the impact of utility service and the natural environment on health outcomes.

Vivek K. Moitra

Vivek is the Allen I. Hyman Professor of Critical Care Anesthesiology and Division Chief of Critical Care Medicine in the Department of Anesthesiology at Columbia University, College of Physicians and Surgeons. He describes himself as a work in progress.


Betsy Ziegler

A lifelong problem solver, people leader, and learner, Betsy is the CEO of 1871, the #1 ranked private incubator in the world

Lindsey Iannucci

Lindsey leads scaled operational growth and drives alignment to strategic priorities; most recently at Twitter, and previously at Google and Accenture.

Andrew Gallan
Andrew Gallan

Andrew is Director of the Center for Services Marketing & Management, at Florida Atlantic University with specific focus on innovation, design, and patient experience in healthcare.

Svetlozar Nestorov
Svetlozar Nestorov

A Stanford graduate, Svetlozar is an expert on data mining, high performance computing, and web technologies. He has experience as a founder and advisor with tech companies in Chicago and Silicon Valley, and is an Associate Professor at the Quinlan School of Business.

Niall Norton
Niall Norton

Niall has steered a number of companies from early stage, through growth, to IPO or acquisition. He was named European Entrepreneur of the Year 2013 (TECHTOUR).