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Hirtenstraße 19, 10178 Berlin, Germany
(+44) 871.075.0336
ouroffice@cortex.com

Vdex Operations Team

William McCullough

William is a long-time medical entrepreneur. He is the Founder and CEO of Vdex Diabetes (May 2015), a new model for the treatment of the world’s largest disease, utilizing state-of-the-art, transformative therapies....

Stephen Brown

Mr. Brown is a successful, serial entrepreneur in the Los Angeles area and one of the original investors in Vdex Diabetes.  He has owned businesses involved in film/TV production, consulting and fitness. Steve saw the potential of Vdex very early and helped fund the start-up....

Kristen Davis

Kristen Davis is a certified Physician Assistant with more than a decade of experience in medicine. Her educational background includes a dual Master of Public Health and Master of Health Sciences/Physician Assistant program at the George Washington University in Washington D.C. She is a member of the AAPA, the national professional society for PAs....

Robert Huizenga, MD

Dr. Huizenga, M.D., practices Internal Medicine, with a focus on Fitness and Sports Medicine.  In addition to his medical practice, Dr. H is a media personality having served as a medical expert and advisor on numerous television shows, most recently, The Biggest Loser. He was also the team physician for the Los Angeles Raiders for their eight-year stay in Los Angeles. He has made multiple appearances on reality television shows, and is the author...

Charles W. Long, MD

Dr. Long is a physician executive with extensive medical management and evidence-based practice experience within a multi-state hospital system.  As a practicing anesthesiologist since 1988, Dr. Long has vast experience with diabetes patients in the pre, and peri-operative period, managing out-of-control Type 1 & 2 patients using insulin and other medications....