Division Leadership
Kari Wisinski, MD
Division Chief
Saurabh Rajguru, MD
Associate Clinical Services Chief
Toby Campbell, MD, MS
Palliative Care Section Chief
Robert Hegeman, MD
General Hematology Oncology Section Chief
Medical Director, Ambulatory Regional Service Cancer Clinics, and Infusion/Chemotherapy Services
Christos Kyriakopoulos, MD
Medical Oncology Section Chief
Ryan Mattison, MD
Hematology/Stem Cell Transplant and Cellular Therapy Section Chief
Hongtao Liu, MD, PhD
Medical Director, Stem Cell Transplant and Cellular Therapy
Carissa Walczak, NP
APP Supervisor
Medical Oncology
Amy Kjeldahl, NP
APP Supervisor
Hematology, Stem Cell Transplant and Cellular Therapy, and Radiation Oncology
Division Administration
Ebenezer Idowu
Division Administrator
Melissa Raper
Administrative Assistant III
Executive assistant to the division chief
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Find more division administrative staff on the Department of Medicine intranet.