Dr. Mark C. Thel

A specialist in peripheral vascular disease, Dr. Brian H. Negus joined The Chattanooga Heart Institute from private practice in Gainesville, Georgia, where he also served as director of the cardiology laboratory at Northeast Georgia Medical Center.He received his doctor of medicine degree from the Medical College of Georgia in Augusta and completed both his internship and residency in internal medicine and cardiology fellowship at Parkland Memorial Hospital in Dallas. He conducted his fellowship in interventional cardiology at the University of Alabama at Birmingham, where he then served as assistant professor of medicine in the interventional cardiology section.Dr. Negus’ work with research has included projects conducted at the Medical College of Georgia and Parkland Memorial as well as at the University of Alabama at Birmingham and Emory University in Atlanta, Georgia.Board certified in internal medicine and cardiovascular diseases, he is a member of the Chattanooga-Hamilton County Medical Society. In addition, he is a fellow in the American College of Cardiology and American Heart Association. Dr. Negus is rated as a Distinguished provider by MediFind in the treatment of High Cholesterol. His top areas of expertise are Arterial Embolism, Coronary Heart Disease, Carotid Artery Disease, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

Hector Picon is a Cardiologist and an Interventional Cardiologist in Rome, Georgia. Dr. Picon is rated as a Distinguished provider by MediFind in the treatment of High Cholesterol. His top areas of expertise are Angina, Coronary Heart Disease, Atherosclerosis, Patent Foramen Ovale Repair, and Heart Bypass Surgery. Dr. Picon is currently accepting new patients.

Dr. William (Bill) Warren is a cardiologist specializing in non-invasive and imaging cardiology. He is board-certified in Internal Medicine, Cardiovascular Disease, Nuclear Cardiology, and Echocardiography. Dr. Warren graduated summa cum laude from Princeton University, earned his Doctor of Medicine degree at Harvard Medical School, completed his internal medicine internship and residency at Massachusetts General Hospital, and finished a cardiology fellowship at Johns Hopkins Hospital. His areas of focus include a wide range of cardiovascular conditions and treatments, with expertise in non-invasive diagnostic studies.Since joining The Chattanooga Heart Institute in 2003, Dr. Warren has become a valued leader at CHI Memorial and in the Chattanooga medical community. He currently serves as managing partner of The Chattanooga Heart Institute, where he collaborates with over 30 colleagues. He previously chaired the CHI Memorial Board of Directors.Dr. Warren possesses a broad range of clinical interests and expertise. His dedication to patient care stems from a deep love of science combined with a genuine ability to connect with patients on a personal level. The complexity and diverse treatment options within cardiovascular care drew him to this field, allowing him to help critically ill patients recover and thrive. He was the recipient of CHI Memorial’s inaugural St. Luke’s Healer’s Heart award which recognizes physicians and providers for demonstrating compassion, inclusion, integrity, excellence and collaboration.Dr. Warren's commitment extends beyond clinical practice. He has conducted research studies which have been published in prestigious journals including the American College of Cardiology Current Journal Review, Circulation, Journal of Infectious Diseases, Journal of Clinical Microbiology, and Journal of Clinical Research.Away from work, Dr. Warren enjoys nature photography and travel. He has visited all seven continents. Dr. Warren is rated as a Distinguished provider by MediFind in the treatment of High Cholesterol. His top areas of expertise are Coronary Heart Disease, Atherosclerosis, Angina, Pacemaker Implantation, and Heart Bypass Surgery.