Allan Stewart, MD FACS, FACC, is a board-certified cardiovascular surgeon, author, educator, innovator, and passionate advocate for heart health, longevity, and human performance. With more than 20 years of experience and over 9,000 cardiac and structural heart procedures performed, Allan Stewart has earned a reputation as the “surgeon of last resort” for complex, high-risk cases that others consider inoperable. His expertise spans valve-sparing aortic root replacements, aortic arch repairs, minimally invasive valve surgery, structural heart interventions, adult congenital heart disease, and advanced heart failure support.

A visionary program builder, Allan Stewart founded the Aortic Surgery Program at Columbia University Medical Center (2005–2013), where he co-developed reproducible techniques and trained more than 25 fellows who now hold leadership positions worldwide. He later built an international reference center at Mount Sinai Health System (2013–2018), launching an emergency transfer system and a multidisciplinary connective-tissue clinic. As Medical Director of Cardiovascular Surgery for HCA East Florida (2019–2025), he integrated AI tools (including Viz.AI and HeartFlow), implemented ERAS protocols, expanded regional referrals dramatically, and elevated multiple hospital programs into centers of excellence.

Today, through his independent practice at MIAORTA, LLC, Allan Stewart continues high-volume complex aortic and structural heart surgery across South Florida hospitals while maintaining international joint ventures and a telehealth aortic surveillance program serving more than 2,000 patients. He is the Founder and Chief Innovation Officer of U Gen Wellness, where he integrates AI with evidence-based nutraceuticals, including the flagship Ü Heart formulation, to help people optimize vitality and extend healthspan. He also serves as Senior Partner at Innovation Platform Capital and on the advisory board of GenZen Pharmaceutal.

In Heart of Longevity: A Surgeon’s Prescription for Strength and Vitality (2025), Allan Stewart  translates decades of operating-room insights, rigorous scientific research, and personal wellness practices into a practical, empowering guide. Drawing from his own journey, mastering precision under pressure, embracing preventive strategies, and rejecting passive aging, he offers readers a surgeon’s blueprint for building a stronger heart, sharper mind, and more resilient body at any age. The book reflects his core belief that the same principles guiding elite surgical outcomes: humility, discipline, innovation, and relentless accountability—can transform everyday health and longevity.

Allan Stewart, MD approach is deeply personal. A devoted husband and father, he models the values of honor, discipline, and service for his three children. His commitment to giving back extends beyond the operating room through global teaching initiatives, mentorship, and collaboration with nutraceutical companies, and outreach to emerging markets struggling with proper healthcare.

Whether in the OR, on the page, or through innovative ventures, Allan Stewart remains driven by one mission: helping individuals reclaim vitality, extend their Healthspan, and return to their lives and loved ones; stronger than before.