Dr. McCullough earned his bachelor’s from Baylor University and his medical degree from the University of Texas Southwestern Medical School. He completed his internal medicine residency at the University of Washington and a cardiology fellowship at William Beaumont Hospital. He also holds a master’s in public health from the University of Michigan. Now practicing in Dallas, Texas, he serves as Chief Medical Advisor of the Truth for Health Foundation. Dr. McCullough has over 1,000 publications and has received several awards, including the Simon Dack Award. During the COVID-19 pandemic, he was a leading voice in early outpatient treatment. He has testified before multiple legislative bodies and is President of the McCullough Foundation.