Dr. Joseph Sivak

John Vavalle is a Cardiologist in Chapel Hill,, North Carolina. Dr. Vavalle is rated as a Distinguished provider by MediFind in the treatment of Mitral Stenosis. His top areas of expertise are Aortic Valve Stenosis, Mitral Valve Regurgitation, Supravalvular Aortic Stenosis, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

I specialize in treating heart valve disease (affecting the mitral, aortic, and tricuspid valves) and hypertrophic cardiomyopathy (HCM). My clinical focus emphasizes minimally invasive approaches, particularly transcatheter procedures for valve disorders. Dr. Wang is rated as a Distinguished provider by MediFind in the treatment of Mitral Stenosis. His top areas of expertise are Familial Hypertrophic Cardiomyopathy, Sengers Syndrome, Subvalvular Aortic Stenosis, Heart Valve Repair, and Transcatheter Aortic Valve Replacement (TAVR).

My role in cardiology at Duke has been in the prevention and management of advanced cardiovascular disease symptoms in my patients. In the area of prevention, I specialized in cholesterol treatment and specifically in the management of statin medications especially for those individuals who feel they are intolerant. My practice also has a focus on patients with difficult-to-control hypertension, hypertension medication intolerance, difficult-to-manage congestive heart failure, and problems with heart failure medications. My newest role in the clinic is as the director of Outpatient Services for our practice. Our practice-based goals are to make sure everyone who sees a Duke cardiologist leaves on the best therapy for their disease based on current evidence and the individual's ability to tolerate and benefit from that treatment. Dr. Blazing is rated as a Distinguished provider by MediFind in the treatment of Mitral Stenosis. His top areas of expertise are Heart Failure, Pulmonary Edema, Heart Failure with Preserved Ejection Fraction (HFpEF), Cardiac Ablation, and Pacemaker Implantation.