Dr. Tulio A. Diaz

Atif Hussain is a Cardiologist and an Interventional Cardiologist in Denton, Texas. Dr. Hussain is rated as a Distinguished provider by MediFind in the treatment of Heart Murmurs. His top areas of expertise are Arterial Embolism, Carotid Artery Disease, Hypertension, and Familial Hypertension.

Dr. Geetha Ramaswamy was always inspired by her uncle, who practiced family medicine for more than 40 years. When she decided to attend medical school, she knew early on that she wanted to focus on cardiology because of the ever-evolving nature of the field. Dr. Ramaswamy is an interventional cardiologist with subspecialty board certification in adult echocardiology and nuclear cardiology. She is a Fellow of the American College of Cardiology and has been serving the heart and vascular needs of patients since 2006. After serving North Texas communities for several years, Dr. Ramaswamy spent more than a decade in Northern Arkansas as a trailblazer in the fields of radial interventional cardiology, women’s heart care and heart valve treatments. She returned to the DFW area in 2021 to continue her work in interventional/structural cardiology.Dr. Ramaswamy earned her Bachelor of Medicine and Surgery from Chennai Medical College in India. She completed her internal medicine residency at the University of Louisville in Kentucky. Dr. Ramaswamy completed her clinical cardiology fellowship at Barnes-Jewish Hospital-Washington University School of Medicine in St. Louis, Mo.She is also fellowship trained in advanced nuclear cardiology and interventional cardiology through Yale University School of Medicine in New Haven, Conn.Dr. Ramaswamy is fluent in the Tamil and Hindi languages. When not with her patients, she enjoys meditating and the practice of yoga to strengthen not only her physical being but also for the mental strength and emotional balance they provide. Dr. Ramaswamy is rated as a Distinguished provider by MediFind in the treatment of Heart Murmurs. Her top areas of expertise are Unstable Angina, Angina, Coronary Heart Disease, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

Ahmad Zankar, M.D., FACC, is fellowship-trained in general cardiology and interventional cardiology from the University of Texas Southwestern Medical School in Dallas and board-certified in general cardiology, echocardiography, interventional cardiology and nuclear cardiology. He brings nearly a decade of clinical, research and training experience to Presbyterian Heart & Vascular Group. Zankar's areas of specialization include minimally invasive, non-surgical therapy for heart and peripheral vascular disease; heart stent procedures; and complex peripheral vascular disease treatments, including laser, atherectomy and totally occluded artery techniques.Zankar attended medical school in Lebanon before coming to the United States for his residency training at the University of Iowa in Iowa City. He is a member of the American College of Cardiology. His previous work includes serving as an assistant professor in the Cardiology Division at UT Southwestern Medical School and as acting director for the Congestive Heart Failure Clinic and Transplantation Services at Veterans Affairs Medical Center, both in Dallas. Dr. Zankar is rated as a Distinguished provider by MediFind in the treatment of Heart Murmurs. His top areas of expertise are Adenosine Deaminase 2 Deficiency, Necrosis, Aortic Regurgitation, Pacemaker Implantation, and Aortic Valve Replacement.