Dr. Gielissen earned her medical degree at the University of Chicago - Pritzker School of Medicine before completing her Internal Medicine / Pediatrics training at Yale-New Haven Hospital. She was the first of two fellows to complete the new General Internal Medicine Medical Education Fellowship in 2018. As part of this training, she was the first of three graduates of the new Master's of Health Science, Medical Education Pathway (MHS-Med Ed), a two year program that features an education research project and provides a comprehensive curriculum for individuals interested in developing a career in the field of medical education. She currently serves as the Ambulatory Associate Program Director for the Yale Traditional Internal Medicine Program, and the Associate Clerkship Director for the Internal Medicine Clerkship at the Yale School of Medicine.
Dr. Gielissen's scholarship focuses on Entrustable Professional Activities (EPAs) as a form of assessment in both the Undergraduate and Graduate Medical Education space. She serves as a member of the Faculty Development group Core EPA pilot in the Association of American Medical Colleges. She also performs qualitative research on Entrustment Decision-Making and on faculty development to enhance the quality of feedback and evaluation in clinical settings. Her clinical interests include diabetes management, transitions of care (pediatric to adult), and ambulatory education.