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Our Team

For general inquiries, please contact


 brat preferred headshot

Daniel J. Brat, MD, PhD 
Magerstadt Professor and Chairman
Department of Pathology
Northwestern University Feinberg School of Medicine
Pathologist-in-Chief, Northwestern Memorial Hospital

About Dr. Brat


Guang-Yu Yang, MD, PhD
Vice Chair of Anatomical Pathology
Director of Gastrointestinal Pathology
Joseph C. Calandra Research Professor of Pathology and Toxicology
Professor of Pathology (Experimental and Gastrointestinal)

About Dr. Yang 


Ritu Nayar, MD
Vice Chair of Education and Faculty Development
Director of Cytopathology 
Professor of Pathology (Cytopathology) and Medical Education 

About Dr. Nayar


Retzinger Headshot

Gregory S. Retzinger, MD, PhD 
Vice Chair of Clinical Pathology
Director of Clinical Chemistry 
Professor of Pathology (Clinical Chemistry)

About Dr. Retzinger 


Peng Ji, MD, PhD 
Vice Chair of Research 
Professor of Pathology 

About Dr. Ji 

Chris Cheney Headshot

Christopher Cheney, MS 
Department Administrator 


Joan Nunziato 
Associate Department Administrator 

Raven Rodriguez
Sr. Education Program Administrator 

Gabriella Raspa
Executive Assistant to Magerstadt Professor and Chairman, Daniel J. Brat, MD, PhD

Saige Jager 
Events & Communications Coordinator

Khadijat Olayiwola
Financial Coordinator

Belinda Beach
Sr. Research Administrator

Mary Kelly
Administrative Assistant

Grace Dohnalek
Research Administrator

Fiona McCullogh, MHA
Adminstrative Coordinator

Tyler Sutton 
Education Coordinator 
Elvira Zacarias
Education Coordinator
Kimberly Liggett
NM Administrative Coordinator
Celeste Urbina
NM Administrative Coordinator
Greg Ridenour
NM Administrative Coordinator

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