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Meet the Team

Greg VanDyne


Greg is a former Special Forces Medical Sergeant (18D) who served with 10th Special Forces Group (Airborne). He is a recent graduate of the University of North Carolina’s Kenan Flagler Business School where he obtained his Master of Business Administration (MBA). Greg is a fierce mental health advocate with a passion for giving back to the military community.

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Beau Barron


Beau Barron is a passionate leader that has built his career around the central goal of providing patients efficient and equitable access to technologically-driven healthcare. Beau graduated from Auburn University with a BS in Kinesiology in addition to serving as a firefighting and EMT for the City of Auburn Fire Department. He went on to complete his Professional Masters of Business Administration from the University of Georgia, with a concentration in Entrepreneurship.

Beau brings 12+ years of enterprise healthcare sales and leadership experience to Callsign 22, made up of time at leading healthcare technology companies. Now as the VP of Sales and Strategy at ViewFi Health, Beau leads the development and implementation of all sales, marketing, and G2M strategies.

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Alexander Lang, MD

Medical Advisor

Dr. Lang is a physician specializing in adult psychiatry with a clinical interest in PTSD, addiction, and men’s mental health. He is a two-time cancer survivor living on borrowed time thanks to advances in cancer treatment. Alex’s passion for Veterans’ mental health
stems from both grandfather’s service in WWII as well as his last 4 years of caring for patients at the VA in Tucson, Arizona. His first book: The Passport of Suffering: One Physician’s Lessons on Love, Hope and Purpose will be published later this year. Any
proceeds from his book will go towards Call Sign 22.

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