Dr. Jeffrey Mark Wiisanen, MD

Dr. Jeffrey Wiisanen is an oncologist and internal medicine physician who earned his medical degree from the University of North Dakota School of Medicine & Health Sciences. He completed his residency training at Mayo Clinic and Medical School, bringing 13 years of medical experience to his practice. His dual specialization allows him to provide comprehensive cancer care while managing the complex medical needs that often accompany oncology treatment.

Dr. Wiisanen practices at multiple Sanford Health locations throughout Fargo, North Dakota, including the Roger Maris Cancer Center, Broadway Medical Center, South University Campus, and Medical Center Fargo. He specializes in treating pancreatic cancer and both early-stage and advanced prostate cancer. His expertise includes administering intravenous chemotherapy and providing comprehensive infusion therapy services to help patients fight cancer effectively.