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Research Fellows

Alex Fisher, MD, MS Portrait of Alexander Fisher, MD, MS
I am a general surgery resident currently dedicating two years toward research at the Wisconsin Surgical Outcomes Research Program (WiSOR) with a focus in the areas of surgical oncology and health services research. I graduated from medical school at the University of Cincinnati where I started to become involved with both basic science research and clinical research regarding surgical readmission. My current interests include surgical readmission, transitions of care, oncologic outcomes research, and cost-effectiveness studies. I was awarded a 2-year grant from the American College of Surgeons to work with my research mentor, Dr. Sharon Weber, to study the design and implementation of a post-operative transitional care protocol following complex abdominal surgery. This phone-based protocol involves a specialized nurse who follows the patient closely after discharge and is designed to prevent readmission and reduce health care utilization in the early post-operative period.

In addition, I am interested in studying oncologic outcomes using multi-institutional databases from the Central Pancreas Consortium and national databases such as the American College of Surgeon’s National Cancer Database. I work with large insurance claims databases in order to derive in order study the cost associated with cancer treatment and surveillance. My long-term goals are to pursue a fellowship in surgical oncology and to continue health services research during my career.

Joseph Imbus, MD Portrait of Joseph Imbus, MD
I attended The Ohio State University for my undergraduate studies, completing a degree in Biology and General Business minor. While at Ohio State, I worked as a research assistant in the Division of Cardiothoracic Surgery, contributing to research focused on the development of an ischemic heart failure model. Thereafter, I attended medical school at the University of Cincinnati College of Medicine, where my interest in surgery developed, ultimately bringing me to the University of Wisconsin for surgical training in 2014.

With two clinical years of residency completed, I am now spending two years conducting outcomes research under the mentorship of Dr. David Schneider within the Wisconsin Surgical Outcomes Research Program. Our group investigates the optimization of endocrine surgical care, utilizing large national databases as well as informatics tools. Currently, we are creating a clinical decision support tool for indeterminate thyroid nodules using informatics tools like natural language processing and machine learning. Other current work includes a project using machine learning methods to aid management of parathyroid disease, a systematic review on clinical decision support tools, and a project utilizing the HCUP national databases. In addition, I am pursuing a master’s degree in Population Health through the University of Wisconsin School of Medicine and Public Health.


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