John M. Flack, MD, MPH, is a board-certified internal medicine specialist and an American Society of Hypertension (ASH)-certified Clinical Hypertension specialist. He completed an NIH post-doctoral fellowship in cardiovascular epidemiology at the University of Minnesota School of Public Health. He received internal medicine residency training as well as his medical degree from the University of Oklahoma Health Sciences Center where he was elected to Alpha Omega Alpha (AOA) medical honor society; he also served as chief medical resident at OU. Flack also received a bachelor's degree in