Interventional cardiologist Dr. Mirza Baig is board certified in five areas: cardiology, nuclear cardiology, interventional cardiology, internal medicine and pediatrics. Dr. Baig specializes in general cardiology, adult congenital heart disease and interventional cardiology. He treats patients for chest pain, shortness of breath, fatigue, palpitations (an indicator of coronary artery disease), blockages of arteries near the heart muscle, arrhythmias and congestive heart failure.