After earning his medical degree from Aga Khan University in Pakistan, Dr. Rehman completed his residency in Internal Medicine at Houston Methodist Hospital in Texas, where he also served as Chief Resident. He continued at Houston Methodist for fellowship training in Cardiovascular Diseases at the hospital's prestigious DeBakey Heart and Vascular Center. He completed his fellowship in Interventional Cardiology at the University of Arizona College of Medicine, training at Banner University Medical Center and Arizona Heart Hospital in Phoenix and Banner Heart Hospital in Mesa.

Dr. Rehman is Board Certified in Internal Medicine and Cardiovascular Disease, with advanced training that includes Interventional Cardiology, Echocardiography, Vascular Ultrasound Interpretation, Nuclear Cardiology and Cardiac CT. His primary area of procedural expertise is complex coronary and peripheral vascular interventions. He is also trained and experienced in structural heart interventions including transcatheter aortic valve replacement (TAVR), left atrial appendage occlusion, and patent foramen ovale (PFO) closure.

Highly regarded in his field, Dr. Rehman has authored more than 20 peer-reviewed research articles and presented papers at several national and international conferences.