Dr. Tyrus Frerking

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 a Distinguished provider by MediFind in the treatment of Pediatric Myocarditis. Her top areas of expertise are Aortic Regurgitation, Pediatric Myocarditis, Necrosis, and Glucocorticoid-Remediable Aldosteronism.

David Musselman is an Interventional Cardiologist and a Cardiologist in Irving, Texas. Dr. Musselman is rated as a Distinguished provider by MediFind in the treatment of Pediatric Myocarditis. His top areas of expertise are Pediatric Myocarditis, Necrosis, Aortic Regurgitation, and Coronary Heart Disease. Dr. Musselman is currently accepting new patients.

Joseph Ortenberg, M.D., was born and raised in Pittsburgh, Pa. He graduated cum laude with a Bachelor of Science in biomedical engineering and mathematics from Vanderbilt University in Nashville. His medical education was completed at Tulane University School of Medicine in New Orleans, where he was a member of the Alpha Omega Alpha medical honor society. He trained in internal medicine at The University of Texas Southwestern Medical School in Dallas, and then completed his fellowship in cardiovascular disease at the University of Pittsburgh Medical Center.Ortenberg is the recipient of numerous local awards, including Top Docs and Healthcare Heroes.His clinical interests include general cardiology and advanced cardiac imaging. He is board-certified in internal medicine and cardiovascular disease and is a Fellow of the American College of Cardiology. Dr. Ortenberg is rated as a Distinguished provider by MediFind in the treatment of Pediatric Myocarditis. His top areas of expertise are Aortic Regurgitation, Pediatric Myocarditis, Dilated Cardiomyopathy (DCM), Pacemaker Implantation, and Cardiac Ablation.