Dr. Donald Zone

Madhurmeet Singh, DO, specializes in electrophysiology and cardiology and is certified in echocardiography, cardiovascular disease, and clinical cardiac electrophysiology by the National Board of Echocardiography. He practices at the UPMC Heart and Vascular Institute and is affiliated with UPMC Northwest and UPMC Hamot. Dr. Singh completed his medical degree at Midwestern University, fellowship at University of Pittsburgh School of Medicine, and residency at Loyola University Medical Center. Dr. Singh is highly rated in 18 conditions, according to our data. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Sick Sinus Syndrome, Pacemaker Implantation, and Cardiac Ablation.

Paul Demjanenko, MD, specializes in cardiology and is certified in internal medicine and cardiovascular disease by the American Board of Internal Medicine. He practices at Chautauqua Medical Services - Great Lakes Physician Practice and is affiliated with UPMC Hamot and UPMC Northwest. Dr. Demjanenko earned his medical degree at Drexel/Hahnemann University College of Medicine. Dr. Demjanenko is highly rated in 30 conditions, according to our data. His top areas of expertise are Peripheral Artery Disease, Arterial Insufficiency, Arterial Embolism, Carotid Artery Disease, and Angioplasty.

Robert Maholic, DO, specializes in cardiology and interventional cardiology and is board-certified by the American Board of Vascular Medicine and the American Board of Internal Medicine. He practices at UPMC Heart and Vascular Institute and is affiliated with UPMC Kane, UPMC Hamot, and UPMC Northwest. Dr. Maholic received his medical degree from Philadelphia College of Osteopathic Medicine and completed his residency at West Penn Hospital, followed by a fellowship at Allegheny General Hospital. Dr. Maholic is highly rated in 13 conditions, according to our data. His top areas of expertise are Pulmonary Embolism, Coronary Heart Disease, Peripheral Artery Disease, Thrombectomy, and Aortic Valve Replacement.