Dr. Tulio Diaz earned his medical degree from Universidad Libre de Cali in Cali, Colombia, in 1999. After medical school, he completed an internship and residency in Internal Medicine at MetroWest Medical Center in Framingham, Massachusetts. Following, he went on to a Fellowship in Cardiovascular and Vascular Medicine; As well as completing Interventional Cardiology training, both at Saint Elizabeth's Medical Center in Boston, Massachusetts. Being a board-certified interventional cardiologist, he is the first cardiologist in the metroplex to specifically obtain a certification in vascular interpretation through ARDMS. As well as, obtaining certifications in Endovascular Interventions for peripheral vascular disease through SMVB and a certification in Vascular Medicine.Furthermore, he is Board Certified in Internal Medicine and Cardiovascular Disease. Completing a post-doctoral fellowship at Massachusetts General Hospital, Harvard Medical School. He is also a Member of the Massachusetts Medical Society. As well as the American College of Physicians and the American Society of Internal Medicine. Dr. Diaz is rated as an Advanced provider by MediFind in the treatment of Prinzmetal's Variant Angina. His top areas of expertise are Angina, Unstable Angina, Coronary Heart Disease, Heart Bypass Surgery, and Atherectomy.

Matthew Dickson, M.D., Ph.D., F.A.C.C., is fellowship-trained and board-certified in internal medicine, cardiac CT, echocardiography, nuclear cardiology, and cardiology. He graduated Summa Cum Laude from Saint Olaf College in Northfield, Minn., with a bachelor's degree in biology before going on to receive his M.D. and Ph.D. from the University of Iowa Carver College of Medicine in Iowa City. He completed his internal medicine internship and residency at Duke University in Durham, N.C., and fellowships in cardiology and advanced multimodality cardiovascular imaging at The University of Texas Southwestern Medical Center in Dallas.Dr. Dickson's areas of special interest include cardiovascular risks in women after menopause, echocardiography, cardiovascular imaging, ambulatory monitoring and exercise testing. He is a member of the American College of Cardiology, American Society of Nuclear Cardiology, American Society for Preventive Cardiology and North American Society for Cardiovascular Imaging. When not caring for the heart-health needs of his patients, Dr. Dickson enjoys jogging, skiing, scuba diving and playing the trumpet. . Dr. Dickson is rated as an Experienced provider by MediFind in the treatment of Prinzmetal's Variant Angina. His top areas of expertise are Aortic Regurgitation, Pediatric Myocarditis, Necrosis, and Fainting.

Brandie Williams, M.D., graduated with honors in biochemistry from Angelo State University in San Angelo, Texas. After receiving her medical degree from the American University of the Caribbean School of Medicine in St. Maarten, Netherlands Antilles, she completed her residency training in internal medicine — and fellowship training in cardiology — at the University of Texas Medical Branch in Galveston. She is board-certified in internal medicine and echocardiography.Williams has earned several humanitarian awards, including the Gold DOC Award from The Arnold P. Gold Foundation for her exemplary sensitivity, compassion and clinical excellence in the care of patients and their families. Her areas of focus include diagnostic heart catheterization, echocardiography, nuclear medicine and vascular studies, with special interests in women’s cardiovascular care, preventive cardiology and sports cardiology.Williams enjoys traveling and spending time with her husband and two children. Dr. Williams is rated as an Experienced provider by MediFind in the treatment of Prinzmetal's Variant Angina. Her top areas of expertise are Aortic Regurgitation, Pediatric Myocarditis, Necrosis, and Glucocorticoid-Remediable Aldosteronism.