Terrence D. Welch, MD, FACC, FASE
Program Director, Cardiovascular Disease Fellowship
Associate Professor of Medicine and Medical Education
Geisel School of Medicine at Dartmouth
Dr. Welch studied at the University of Notre Dame (BS) and then at Washington University School of Medicine (MD). He completed post-graduate training in internal medicine at the University of Michigan and in cardiovascular disease at the Mayo Clinic. Dr. Welch has worked as a staff cardiologist at Dartmouth Hitchcock Medical Center since 2012. His practice and academic interests include echocardiography, structural heart disease, heart failure, and pericardial disease. He also serves as the Medical Director for the Cardiac Rehabilitation Program.
Dr. Welch enjoys teaching at all levels and served as the past director of the preclinical Cardiovascular Medicine course at the Geisel School of Medicine at Dartmouth. He was the recipient of the H. Proctor Harvey Young Teacher Award in 2017 from the American College of Cardiology. After serving 3 years as Associate Program Director, Dr. Welch became Program Director for the Cardiovascular Disease Fellowship in 2019.
Gregory A. Dadekian, MD, FACC, FACP
Associate Program Director, Cardiovascular Disease Fellowship
Assistant Professor of Medicine and Medical Education
Geisel School of Medicine at Dartmouth
Dr. Dadekian is a graduate of Holy Cross (BA, 2002) where he studied Biology and Economics. As a member of the Brown-Dartmouth Program, attended Dartmouth Medical School (2002 to 2004) and the Warren Alpert School of Medicine at Brown University (MD, 2006). He received training in Internal Medicine at Yale-New Haven Hospital (2006 to 2009) and then served in the United States Navy at Walter Reed National Military Medical Center (2009 to 2013), achieving a rank of Lieutenant Commander.
While in the Navy, Dr. Dadekian served as the Director of the Hospital Medicine service at Walter Reed and also as an associate program director for the Internal Medicine residency. He was integrally involved in the daily education of medical students and the Internal Medicine house staff, which sparked his interest in academic medicine, specifically graduate medical education.
Upon completion of his Naval service, Dr. Dadekian returned to the Upper Valley to complete his fellowship in Cardiovascular Medicine (2013 to 2016) and then joined the faculty at Dartmouth Hitchcock Medical Center. As a non-invasive Cardiologist, his clinical focus is in imaging—transthoracic and transesophageal echocardiography, stress testing, and nuclear imaging. He is also involved in sports cardiology and serves as a team physician for Dartmouth College.
Kerrilynn C. Hennessey, MD, FACC
Associate Program Director, Cardiovascular Disease Fellowship
Assistant Professor of Medicine
Geisel School of Medicine at Dartmouth
Dr. Hennessey completed her undergraduate studies at Brown University (BS) and received her medical degree from New York University School of Medicine (MD). She then completed post-graduate training in internal medicine at New York University where she also served as a chief resident and National VA Quality Scholar. Dr. Hennessey completed her training in cardiovascular medicine at Yale and then joined the Dartmouth faculty in 2020. Dr. Hennessey is board certified in Internal Medicine, Cardiovascular Medicine, Echocardiography, Nuclear Cardiology, and Cardiac Computed Tomography. Her practice and academic interests include echocardiography, healthcare quality, equity within the field of cardiovascular medicine, and the management of cardiovascular disease in women. She is a member of the Dartmouth Health Quality Physician Academy, and serves as the Director of the Cardio-obstetrics program.
Dr. Hennessey has enjoyed teaching at all levels of her training and has experience developing innovative curriculum for quality improvement while serving as a chief resident. She has been part of the core faculty for the cardiovascular disease fellowship and preclinical cardiovascular medicine course at Geisel School of Medicine since 2020 and joined the fellowship program leadership in 2023.
Mark A. Creager, MD, FAHA, FACC, MSVM
Research Advisor, Cardiovascular Disease Fellowship
Anna Gundlach Huber Professor of Medicine
Geisel School of Medicine at Dartmouth
Dr. Creager is the former Director of the Heart and Vascular Center at Dartmouth Hitchcock Medical Center. He earned his medical degree at Temple University in Philadelphia, and completed his internship, medical residency, and fellowships in Vascular Medicine and Cardiology at University Hospital in Boston.
Dr. Creager is a past President of the American Heart Association and served on its National Board of Directors. He served on the Board of the World Heart Federation. He is an editor of the textbook, Vascular Medicine and the editor emeritus of the journal, Vascular Medicine. He is a Past President and Master of the Society for Vascular Medicine and a Past President of the Vascular Disease Foundation. He is a Fellow of the American Heart Association and of the American College of Cardiology, and a member of the American Society of Clinical Investigation. His major research and clinical interest is in vascular medicine, specifically vascular regulatory mechanisms and the effect of treatment on patients with peripheral artery disease. He is the author of more than 400 published contributions to the medical literature, including: research papers on vascular function, book chapters, and monographs on vascular disease. Dr. Creager has been recognized with several prestigious awards and honors, including the American Heart Association Distinguished National Leadership and Gold Heart Awards, and the Vascular Disease Foundation President’s Award for Leadership.