University of Nebraska Medical Center

Karen Deffenbacher, MD, PhD

Assistant Professor, Division of Cardiovascular Medicine


Dr. Deffenbacher did her internal medicine training at Harvard, Brigham and Women's Hospital in Boston, MA. She also did her cardiology and interventional cardiology at Northwestern Medicine in Chicago, IL.


  • Professional School: UNMC College of Allied Health Professions, 2003
  • Medical School: UNMC College of Medicine, 2015
  • Residency: Internal Medicine, Brigham & Women's Hospital, 2018
  • Fellowship: Cardiovascular Disease, Northwestern University, 2021
  • Fellowship: Interventional Cardiology, Northwestern University, 2022