Dennis J. Esterbrooks, M.D.   Associate Professor of Medicine and Radiology   Associate Director of The Cardiac Center   Associate Chair for Clinical Affairs of the Department of Medicine         Dr. Esterbrooks graduated from Creighton University School of Medicine.  He completed his Internal Medicine Residency and Cardiovascular Fellowship at Creighton and was named Chief Cardiology Fellow in his final year of fellowship.   Dr. Esterbrooks is a Fellow of the American College of Cardiology and is Medical Director of the Cardiac Rehabilitation and Cardiac Imaging programs.  He is board certified in Internal Medicine and Cardiovascular Diseases and specializes in non-invasive cardiology.  Dr. Esterbrooks has been recognized as a Master Clinician (1998) by his peers at Creighton University.