Dr. Christopher Mackey

Zelalem Yilma is a Cardiologist and an Interventional Cardiologist in Mesa, Arizona. Dr. Yilma is rated as a Distinguished provider by MediFind in the treatment of Sitosterolemia. Her top areas of expertise are Angina, Homozygous Familial Hypercholesterolemia (HoFH), Defective Apolipoprotein B-100, Pacemaker Implantation, and Heart Bypass Surgery. Dr. Yilma is currently accepting new patients.

Dr. John R. Tretter is board certified in Cardiovascular Medicine, Internal Medicine, Echocardiography and level 2 CT Angiography. Dr. Tretter received his medical degree from Autonomous University of Guadalajara, Guadalajara, México. He completed his internal medicine residency at Harbor Hospital, Baltimore, Maryland in 1989 and completed his cardiology fellowship at the Mount Sinai Medical Center in Cleveland, Ohio. Dr. Tretter is a member of the American College of Cardiology and the American Society of Echocardiography. He practiced with the Slocum-Dickson Medical group in upstate New York for nearly 20 years.In 2009 he traded snowboarding on the slopes of upstate New York for mountain biking in the beautiful Arizona desert terrain to join Premier Cardiovascular Center (PCC). He has extensive experience in various cardiovascular diseases and provides services at our Casa Grande location and Banner Casa Grande Medical Center, where he serves as the Chief of Cardiology. Dr. Tretter is rated as a Distinguished provider by MediFind in the treatment of Sitosterolemia. His top areas of expertise are Cardiomyopathy, Coronary Heart Disease, Atherosclerosis, and Angina.

Sreedivya Chava is a Cardiologist and an Interventional Cardiologist in Mesa, Arizona. Dr. Chava is rated as a Distinguished provider by MediFind in the treatment of Sitosterolemia. Her top areas of expertise are Angina, Atrial Fibrillation, Mitral Valve Regurgitation, Aortic Valve Replacement, and Pacemaker Implantation.