Conditions Treated by Dr. Mark C. Johnson, MD

• Aortic Ectasia
• Aortic Valve Disease
• Arrhythmias (incl. Atrial Fibrillation)
• Cardiomegaly
• Cardiomyopathy
• Coarctation of the Aorta
• Congenital Heart Disease
• Endocarditis
• Hypertension
• Marfan Syndrome
• Mitral Valve Disease
• Pericardial Disease
• Pulmonary Hypertension
• Pulmonary Valve Disease
• Septal Defect
• Syncope
• Systemic Vasculitis
• Tricuspid Valve Disease