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

Leena Mathew

Leena is Professor of Anesthesiology and Director of the Pain Medicine Program at Columbia University. She is also certified in Functional / Lifestyle Medicine and Acupuncture. Her special interests lie in the intersection of Chronic and Cancer pain with Women’s Health, Biomechanics and Metabolic Disease.

Jeremy Alland

Jeremy is a board-certified family practice physician with CAQ in sports medicine and practices non-operative orthopedics and sports medicine at Midwest Orthopaedics at Rush in Chicago.

Janelle Duah

Janelle is an Internal Medicine physician specializing in Primary Care and Obesity Medicine at Yale.

Linda Yang

Linda is a gynecologic surgeon and expert dedicated to advancing women's health through surgical excellence and innovation.

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.

Alexandra Kreps

Alexandra is an internal medicine physician and health tech executive with a deep interest in the use of social media for disseminating medical information and education.

Erik Blutinger

Erik is a board-certified emergency physician and medical director at the Mount Sinai Health System in New York City. His policy and research focus primarily on digital health and home care among other areas.


Betsy Ziegler

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

Vinny Warren

Vinny has created advertising campaigns for Budweiser, Volkswagen and Kraft among many others. In 2006, Vinny was inducted into the Clio Awards hall of fame for his iconic Budweiser “Wassup!”campaign. Five of Vinny’s ideas aired on the Super Bowl and he has two Emmy nominations.

Lauren Streicher

Lauren is a clinical professor of obstetrics and gynecology at Northwestern University and the host of Dr. Streicher’s Inside Information Podcast.

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.

Kathleen King

Kathleen is a Medical Scientist and an influential advocate for endometriosis. She is the former Chairperson of the Endometriosis Association of Ireland and one of the founding members of the World Endometriosis Organizations.