Alexander Chern, MD

I joined the faculty at Penn in 2017, prior to which I was on faculty at the University of Colorado since 2015. There I completed a fellowship in pulmonary and critical care medicine and a sub-fellowship in pulmonary vascular disease. During my fellowship and while on faculty at University of Colorado, I studied the role of macrophages in the development of hypoxic pulmonary hypertension with a clinical focus on pulmonary hypertension and pulmonary embolism. Since joining Penn, I’ve transitioned to a clinical role. I spend my time in the hospital as an intensive care unit physician, and I also attend on our inpatient Pulmonary Hypertension service and the Pulmonary Embolism Response Team (PERT). My outpatient focus is in the care of patients with all aspects of pulmonary vascular disease, including pulmonary hypertension, hepatopulmonary syndrome, hereditary hemorrhagic telangiectasia (HHT), and acute and chronic pulmonary embolism. I am the Director of PERT at the Hospital of the University of Pennsylvania, and I co-direct the Comprehensive Pulmonary Embolism Program at Penn with cardiothoracic surgeon Christian A. Bermudez. A large part of my outpatient practice is the follow-up care of patients who have suffered acute pulmonary embolism as well as patients with chronic thromboembolic pulmonary hypertension (CTEPH). I work closely with a multidisciplinary team, including interventional cardiology, hematology, interventional radiology, diagnostic radiology, and cardiothoracic surgery. I am particularly interested in providing transition care for post-pulmonary embolism patients, as well as care for patients who experience ongoing shortness of breath following an acute pulmonary embolism and patients seeking a second opinion for unexplained shortness of breath. In addition to my clinical and administrator roles, I enjoy teaching about pulmonary vascular disease and cardio-pulmonary physiology.

Dr. Steven Joel Feigenberg is a highly regarded radiation oncologist based in Philadelphia, PA, where he serves as the Chief of Thoracic Service at the Hospital of the University of Pennsylvania and holds a professorship in Radiation Oncology. He specializes in treating patients aged 18 and up and has received positive feedback for his attentive and caring approach to patient care. With an impressive educational background, including training at prestigious institutions such as Drexel University College of Medicine and Temple University Hospital, Dr. Feigenberg has earned a commendable average rating from patients. His expertise extends across various insurance plans, ensuring accessible care for a diverse patient base. Generated from the website

Forrest B. Fernandez, MD, is a Clinical Professor of Surgery specializing in Trauma and Acute Care Surgery, serving patients aged 18 and up. He is affiliated with LG Health Physicians and offers his services at multiple locations in Pennsylvania. Dr. Fernandez completed his medical education at the University of Michigan, followed by a residency at St. Joseph Mercy Hospital and a fellowship at the University of Connecticut Hartford Hospital. He accepts a wide range of insurance plans, making his expertise accessible to many patients seeking surgical care. Generated from the website