Dr. Feller joined the faculty of the University of Maryland School of Medicine in the department of medicine, division of cardiology. She is a member of the heart failure and transplant program team.

Prior to coming to the University of Maryland in the fall of 2004, Dr. Feller had spent five years at Temple University Hospital, where she was a medical intern, medical resident, cardiology fellow and chief cardiology fellow. Her areas of special interest include heart failure, heart transplant immunology and left ventricular assist device physiology. She is board certified in internal medicine.