Sami Ibrahimi, M.D., a fellowship-trained hematologist-oncologist, has joined the Stephenson Cancer Center. He also has been named an assistant professor of hematology and oncology in the OU College of Medicine at the University of Oklahoma Health Sciences Center.

Stefani D. Madison, M.D., a fellowship-trained palliative care specialist, has been named director of Palliative Care in the Supportive Care Clinic at the Stephenson Cancer Center. She has also been named an assistant professor in the department of Family and Preventive Medicine at the University of Oklahoma College of Medicine.