James H. Rubenstein, MD


Dr. James Rubenstein was Past President of the American College of Radiation Oncology and holds memberships in a variety of national and local professional societies. He has published many articles on radiation therapy for the treatment of cancers and has presented this data at national meetings.




  • Yale University
    Bachelor's of Arts
    New Haven, CT, 1977
  • New York University School of Medicine
    New York, NY, 1981


  • Beth Israel Hospital
    Internal Medicine
    Boston, MA, 1982


  • Beth Israel Hospital
    Internal Medicine
    Philadelphia, PA, 1984
  • Hospital of the University of Pennsylvania
    Radiation Oncology, Chief Resident
    Philadelphia, PA, 1987

Board Certifications

  • Radiation Oncology
  • Internal Medicine

Clinical Expertise

  • Radiation Oncology


  • Prostate, Breast, Lung, Colorectal, Head and Neck Malignancies

Technologies and Procedures

  • 3D Conformal Radiotherapy
  • Image Guided Radiotherapy (IGRT)
  • Intensity Modulated Radiation Therapy (IMRT)
  • Extracranial Stereotactic Body Radiotherapy (SBRT)
  • Intracranial Stereotactic RadioSurgery (SRS)
  • High Dose Rate (HDR) Brachytherapy
  • Low Dose Rate (LDR or Seed) Brachytherapy
  • Accelerated Partial Breast Irradiation (APBI)

Awards and Honors

  • Past President of the American College of Radiation Oncology, Published and presented many Peer Reviewed Articles in Professional Publications and Trade Associations, magna cum laude at Yale University, Alpha Omega Alpha Medical Honor Society, Sigma XI, "Top Doctor" Award by Castle Connolly

Current and Past Positions

  • 21st Century Oncology - Co-Founder and Radiation Oncologist
    Fort Myers, FL
  • University of Miami School of Medicine - Assistant Professor, Department of Radiation Therapy
    Miami, FL
  • University of Pennsylvania School of Medicine - Assistant Professor
    Philadelphia, PA
  • Columbia Regional Medical Center - Chairman, Department of Medicine
    Fort Myers, FL

Professional Associations

  • American College of Radiology
  • American College of Radiation Oncology
  • American Medical Association
  • American Society for Therapeutic Radiology and Oncology
  • Association of Freestanding Radiation Oncology Centers
  • Charlotte County Medical Society
  • Florida Medical Association
  • Florida Radiological Society
  • Florida Medical Political Action Committee