Maria A. Thomas, MD, PhD

Radiation Oncologist

Primary Academic Title

Assistant Professor of Radiation Oncology, Washington University School of Medicine

Clinical Expertise

Breast cancer, radiation oncology, image-guided radiation therapy (IGRT), MRI-guided radiation therapy (MR-IGRT), accelerated partial breast radiation, lymphoma, cutaneous lymphoma

Research Interest

Reduction of cardiac radiation exposure during radiation therapy for breast cancer.


  • 2006: PhD, philosophy, Saint Louis University, St. Louis
  • 2008: MD, Saint Louis University


  • 2008 - 2009: Intern, St. John's Mercy Medical Center, St. Louis
  • 2009 - 2013: Resident, radiation oncology, Washington University, St. Louis

Board Certification

  • 2014: American Board of Radiology, Radiation Oncology

Journal Articles

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Contact Information

  • Washington University Medical Campus

    4921 Parkview Place
    Saint Louis, MO 63110

  • South St. Louis County

    5225 Midamerica Plaza
    St. Louis, MO 63129

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