Daniel S. Wyzan, MD, is a board-certified pulmonologist at Ascension St. Vincent's in Jacksonville, FL. He diagnoses and treats respiratory conditions in adults, such as asthma, bronchitis, pneumonia and sleep apnea. Dr. Wyzan has a clinical interest in cystic fibrosis, bronchopulmonary dysplasia, lung disease, neuromuscular disease, pulmonary and hypertension. If your condition is complex, he collaborates with our multispecialty care team to provide the comprehensive care you need.