Medical College of Wisconsin Pathology & Laboratory Medicine Fellowship Programs

The department offers 1-year, ACGME-accredited fellowship programs in Hematopathology and Cytopathology, as well as 1-year non-accredited fellowships in Women's Health Pathology and GI/Liver Pathology. Our department also sponsors a Transfusion Medicine fellowship at Versiti Blood Center of Wisconsin, a Pediatric Pathology fellowship at Children’s Wisconsin, and a Forensic Pathology fellowship at the Milwaukee County Medical Examiner’s Office.
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Meet Our Fellows


Rebecca Czaja, MD

Pathology Fellow, Breast and GYN

Medical School: St. George's University School of Medicine


Carl Dernell, MD

Pathology Fellow, Selective Pathology – Surgical

Medical School: University of Colorado School of Medicine


David Nai, MD

Pathology Fellow, Hematopathology

Medical School: University of Michigan


Mariam Ratiani, MD

Pathology Fellow, Blood Banking/Transfusion Medicine

Medical School: Saba University School of Medicine


Charles Rohrer, MD

Pathology Fellow, Forensics

Medical School: University of Wisconsin School of Medicine and Public Health