Dr. Katy Lonergan

Deepika Gopalakrishnan is a Cardiologist in Plano, Texas. Dr. Gopalakrishnan is rated as a Distinguished provider by MediFind in the treatment of Adenosine Deaminase 2 Deficiency. Her top areas of expertise are Adenosine Deaminase 2 Deficiency, Thoracic Aortic Aneurysm, Coronary Heart Disease, and Atherosclerosis.

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 Adenosine Deaminase 2 Deficiency. His top areas of expertise are Adenosine Deaminase 2 Deficiency, Necrosis, Aortic Regurgitation, Pacemaker Implantation, and Aortic Valve Replacement.

David S. Harper, M.D., F.A.C.C. practices general and invasive cardiology with Presbyterian Heart & Vascular Group, and is board-certified in internal medicine and cardiovascular diseases. After receiving his undergraduate degree from Duke University in Durham, N.C., Dr. Harper attended medical school at The University of Texas Southwestern Medical School in Dallas, where he also completed his internship and residency. He then completed his cardiology fellowship at Wake Forest University Baptist Medical Center in Winston-Salem, N.C.Dr. Harper participates actively in the internal medicine teaching program at Texas Health Presbyterian Hospital Dallas, and is a Fellow of the American College of Cardiology. His areas of expertise include preventive cardiology, echocardiography, valvular heart disease, coronary artery disease, nuclear cardiology and heart rhythm management. Dr. Harper and his wife Courtney have four children. Dr. Harper is rated as a Distinguished provider by MediFind in the treatment of Adenosine Deaminase 2 Deficiency. His top areas of expertise are Aortic Regurgitation, Pediatric Myocarditis, Necrosis, and Atrial Fibrillation.