The fields of study she is best known for:
Cancer
Internal medicine
Radiation therapy
Susan L. Tucker focuses on Radiation therapy, Internal medicine, Surgery, Nuclear medicine and Cancer. The Radiation therapy study combines topics in areas such as Retrospective cohort study, Lung cancer and Lung volumes. Her research in Internal medicine intersects with topics in Gastroenterology, Endocrinology and Oncology.

Her work deals with themes such as Neoplasm staging, Incidence and Cohort study, which intersect with Surgery. Her Nuclear medicine research is multidisciplinary, incorporating elements of Radiobiology, Head and neck cancer, Asymptomatic and Confidence interval. Her work on Prostate, Prostate cancer and Colorectal cancer is typically connected to Weight loss as part of general Cancer study, connecting several disciplines of science.