Oncology
Thorvardur Halfdanarson, M.D.
Professor of Oncology, Mayo Clinic College of Medicine and Science
Rochester, MN
Thorvardur R. Halfdanarson, M.D., is a medical oncologist at Mayo Clinic in Rochester, Minnesota, specializing in gastrointestinal malignancies with a particular focus on neuroendocrine tumors (NETs) of all types and origins, including lung NETs, gastrointestinal NETs, pancreatic NETs, pheochromocytoma/paraganglioma, and those with liver metastases. He also manages hepatobiliary and pancreatic cancers in multidisciplinary settings, colorectal cancer including locally recurrent rectal cancer, gas
30+
Years in Practice
Credentials
Board Certifications
- Internal Medicine (American Board of Internal Medicine)
- Hematology (American Board of Internal Medicine)
- Medical Oncology (American Board of Internal Medicine)
Education & Training
- University of Iceland — Class of 1995
- University of Iowa Hospitals and Clinics — Residency, Internal Medicine, 2000 - 2003
- Mayo Clinic College of Medicine and Science (Rochester) — Fellowship, Hematology and Medical Oncology, 2003 - 2007
Clinical Focus
Subspecialties
Hematology & OncologyMedical Oncology
Conditions & Treatments
Colorectal CancerBrain TumorsNeuroendocrine TumorsPancreatic CancerClinical Trials & Drug DevelopmentBiliary CancerPrecision OncologyCancer Genomics
Practice Details
Hospital Affiliations
- Mayo Clinic
Languages
English
Experience
30+ years in practice