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Summary

  • James Leenstra, MD is a radiation oncology expert based in Rochester, MN. A graduate of the University of Oklahoma College of Medicine in 2002, he pursued residency in both internal medicine and radiation oncology at Mayo Clinic College of Medicine and Science in Rochester from 2002 - 2010. Dr. Leenstra has extensive experience in treating various types of cancers including gastrointestinal, breast, lung, prostate, and head and neck cancer. He has numerous notable publications in prestigious journals such as the International Journal of Radiation Oncology, Biology, Physics, and JAMA Oncology, some of which have been cited multiple times by other publications. Dr. Leenstra has also been involved in various clinical trials, showcasing his commitment to advancing treatment options for patients with conditions such as HER2-positive breast cancer, high-risk prostate cancer, esophageal cancer, anaplastic thyroid cancer, and pancreatic cancer.

Education & Training

  • Mayo Clinic College of Medicine and Science (Rochester)
    Mayo Clinic College of Medicine and Science (Rochester)Residency, Radiation Oncology, 2006 - 2010
  • Mayo Clinic College of Medicine and Science (Rochester)
    Mayo Clinic College of Medicine and Science (Rochester)Residency, Internal Medicine, 2002 - 2006
  • University of Oklahoma College of Medicine
    University of Oklahoma College of MedicineClass of 2002

Certifications & Licensure

  • WI State Medical License
    WI State Medical License 2010 - 2025
  • MN State Medical License
    MN State Medical License 2015 - 2025
  • American Board of Radiology Radiation Oncology

Clinical Trials

Publications & Presentations

PubMed

Professional Memberships

Hospital Affiliations