Dr. Marcus Williams

. Dr. Messerschmidt is rated as an Advanced provider by MediFind in Coronary Artery Bypass Graft (CABG). His top areas of expertise are Pleuropulmonary Blastoma, ALK-Positive Non-Small Cell Lung Cancer, Squamous Cell Lung Carcinoma, Heart Bypass Surgery, and Coronary Artery Bypass Graft (CABG).

Bryan Helsel, MD, is a cardiovascular thoracic surgeon in Johnson City, TN. Dr. Helsel recently moved his family to the area after he retired from the U.S. Army, where he flew attack helicopters. He is passionate about teamwork, and providing the best possible care to his patients. Dr. Helsel is rated as an Experienced provider by MediFind in Coronary Artery Bypass Graft (CABG). His top areas of expertise are Thoracic Aortic Aneurysm, Aortic Valve Stenosis, Aortic Dissection, Heart Bypass Surgery, and Coronary Artery Bypass Graft (CABG).

Robert Ferguson, DO, believes the best care begins with treating patients the way he would treat his own family. Guided by the principle “Do unto others as you would have them do unto you,” he approaches every case with compassion and skill. As a cardiothoracic surgeon, Dr. Ferguson finds meaning in building trust with patients and guiding them through complex and often life-changing procedures. Dr. Ferguson is rated as an Experienced provider by MediFind in Coronary Artery Bypass Graft (CABG). His top areas of expertise are Pleuropulmonary Blastoma, Lung Nodules, Lung Cancer, Heart Bypass Surgery, and Coronary Artery Bypass Graft (CABG).