Dr Diala Steitieh completed an accelerated premedical program followed by a medical degree from Weill-Cornell Medicine in Qatar. After graduating she moved to New York where she completed her residency in Internal Medicine at Weill Cornell Medicine. After becoming board certified in Internal Medicine, Dr Steitieh completed a fellowship in cardiovascular disease at New York Presbyterian Hospital- Weill Cornell Medicine, where she served as chief fellow.

She is a member of the American College of Cardiology and the American Heart Association, and participates in outcomes research within the division of Cardiology.