Throughout her career, Dr. Lenner has held various positions, including serving as the Director of the Emergency Department and as a Pulmonary and Critical Care Attending at James J. Peters Medical Center in Bronx, NY. She was then appointed as the Associate Director of the Surgical Intensive Care Unit and the Director of Pulmonary Outpatient Clinics at the same hospital. Dr. Lenner has actively contributed to the field of respiratory treatments through her presentations at conferences and publications in numerous academic journals and abstracts. Her research collaborations with the Bronx VA and Mount Sinai Hospital have resulted in several noteworthy publications, establishing her as a respected leader in her field.
Since 1996, Dr. Lenner has been an engaged fellow of the American College of Chest Physicians, demonstrating her ongoing commitment to professional development and advancement within the field.