Dr. Marcio S. Bittencourt

Catalin Toma, MD, is an interventional cardiologist and is certified in cardiovascular disease and interventional cardiology by the American Board of Internal Medicine. He currently serves as director of interventional cardiology for the Heart and Vascular Institute and director of the Interventional Fellowship at UPMC. He is an assistant professor of medicine at the University of Pittsburgh School of Medicine. He received his medical degree from Grigore T. Popa University of Medicine and Pharmacy in Iasi, Romania. Following a post-doctoral fellowship at Johns Hopkins in Baltimore, he completed an internal medicine residency at St. Luke’s Roosevelt Hospital Center in New York City and a fellowship in cardiovascular disease and interventional cardiology at UPMC. Dr. Toma joined the UPMC Heart and Vascular Institute in 2007. He currently leads the Chronic Total Occlusion Program as well as the Pulmonary Vascular Interventional Program at UPMC Presbyterian Hospital. He is an integral part of the Structural Heart Program with interests in the aortic and tricuspid space. Additional interests include intracoronary imaging and mechanical circulatory support. Dr. Toma has had an extensive amount of publications and presentations over his career, has several invention patents, and serves as a clinical study leader at local and national levels. View Dr. Toma's full list of publications from PubMed. Dr. Toma is rated as a Distinguished provider by MediFind in Heart Bypass Surgery. His top areas of expertise are Pulmonary Embolism, Acute Coronary Syndrome, Heart Attack, Percutaneous Coronary Intervention (PCI), and Aortic Valve Replacement.

Oscar Marroquin is a Cardiologist in Pittsburgh, Pennsylvania. Dr. Marroquin is rated as an Advanced provider by MediFind in Heart Bypass Surgery. His top areas of expertise are Coronary Heart Disease, Heart Attack, Retinopathy Pigmentary Mental Retardation, Percutaneous Coronary Intervention (PCI), and Heart Bypass Surgery.

Dustin Kliner, MD, is an interventional cardiologist and is certified in interventional cardiology, cardiovascular disease and internal medicine by the American Board of Internal Medicine. He is Co-Director of the Transcatheter Aortic Valve Replacement (TAVR) program at UPMC Presbyterian Shadyside and serves as the director of the cardiac cath lab at UPMC Shadyside. He is a clinical assistant professor of medicine at the University of Pittsburgh School of Medicine. Dr. Kliner received his medical degree from Northeastern Ohio Medical University in Rootstown, OH and completed residency as well as fellowships in cardiovascular disease, interventional cardiology, and advanced interventional cardiology at UPMC. Dr. Kliner is rated as a Distinguished provider by MediFind in Heart Bypass Surgery. His top areas of expertise are Aortic Valve Stenosis, Pulmonary Hypertension, Coronary Heart Disease, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).