Dr. Steven D. Nathan

Dr. Hansel is a pulmonary and critical care medicine physician. She is an expert in the diagnosis and treatment of obstructive airway diseases, including asthma and chronic obstructive pulmonary disease (COPD), and care of patients in the Medical ICU. Dr. Hansel is rated as a Distinguished provider by MediFind in the treatment of Chronic Obstructive Pulmonary Disease (COPD). Her top areas of expertise are Chronic Obstructive Pulmonary Disease (COPD), Emphysema, Asthma, Bronchitis, and Endoscopy.

Dr. Putcha is a pulmonary and critical care physician. She is an expert in the diagnosis and treatment of lung disease (specifically obstructive lung diseases such as COPD and asthma), and in the care of critically ill patients in the Medical ICU. She is a member of the Lung Research Conference Planning Committee and provides teaching to medical students and residents at Johns Hopkins. Dr. Putcha is rated as a Distinguished provider by MediFind in the treatment of Chronic Obstructive Pulmonary Disease (COPD). Her top areas of expertise are Chronic Obstructive Pulmonary Disease (COPD), Emphysema, Cerebral Hypoxia, and Asthma.

Dr. McCormack is a pulmonary, critical care physician and Associate Director of the Pulmonary & Critical Care Medicine Division. She is an expert in the diagnosis and treatment of patients with obstructive lung disease, including those with asthma and COPD. She has expertise in pulmonary physiology. She serves as the Medical Director of the Johns Hopkins University Pulmonary Function Laboratory and as the Chair of the American Thoracic Society Pulmonary Function Test Committee. She earned her M.D. from Jefferson Medical College of Thomas Jefferson University and her M.H.S. from the Bloomberg School of Public Health. She completed her residency at Thomas Jefferson University Hospital and performed a fellowship in pulmonary and critical care medicine at Johns Hopkins. She was the recipient of the Frederick L. Brancati Excellence in Mentoring Award. She plays an active role in mentoring fellows and junior faculty in the Pulmonary & Critical Care Medicine Division. Dr. Mccormack is rated as a Distinguished provider by MediFind in the treatment of Chronic Obstructive Pulmonary Disease (COPD). Her top areas of expertise are Chronic Obstructive Pulmonary Disease (COPD), Asthma, Acute Interstitial Pneumonia, Interstitial Lung Disease, and Lung Transplant.