Photo of Stephen B. Bader, MD

Stephen B. Bader, MD

Accepting New Patients
4805 Northeast Glisan Street, Garden Level
Portland, OR 97213
2320.8 miles away
Speaks: English

The Elsie Franz Finley Radiation Oncology Center - Providence Portland Medical Center

4805 Northeast Glisan Street, Garden Level, Portland, OR 97213

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About Stephen B. Bader

"My first responsibility as an oncologist is to teach a patient and their family about their diagnosis of cancer, the natural history of the disease, how it is treated and the role of radiotherapy in their disease process. I explain how my treatment team will provide them not only first rate care, but also the compassion and support that all cancer patients deserve." - Stephen Bader, M.D.

Dr. Bader graduated from the University of Washington and completed his internship and residency in internal medicine at the New England Deaconess Hospital, Harvard Medical School. He later finished his fellowship and became Chief Resident for the Joint Center for Radiation Therapy at Harvard Medical School. Dr. Bader is a member of several organizations, including the American Society for Clinical Oncology, the American Society for Therapeutic Radiation Oncology and the American Brachytherapy Society. Dr. Bader is also the former Medical Director of the Department of Radiation Oncology at Providence Health System and the Gamma Knife Center of Oregon. Dr. Bader focuses on lung cancer, head and neck malignancies, prostate cancer, and other radiation oncology needs at The Oregon Clinic - Radiation Oncology.

Medical School

University of Washington Medical Center


Harvard Joint Center for Radiation Therapy
Therapeutic Radiology


New England Deaconess Hospital, Harvard Medical School
Internal Medicine


New England Deaconess Hospital, Harvard Medical School
Internal Medicine

Board Certifications
  • American Board of Internal Medicine, Internal Medicine
  • American Board of Radiology, Radiation Oncology

Affiliated Locations
The Gamma Knife Center of Oregon
Providence Portland Medical Center
Providence St. Vincent Medical Center

Clinical Interests

  • Arteriovenous Malformation (Avm)
  • Brachytherapy
  • Brain Neoplasms
  • Cerebral Aneurysm
  • External Beam Radiation Therapy
  • Gallbladder Cancer
  • Gamma Knife Perfexion
  • High Dose Rate Brachytherapy
  • Image Guided Radiation Therapy
  • Intensity Modulated Radiation Therapy
  • Intraoperative Radiation Therapy
  • Low Dose Rate Brachytherapy
  • Lung Cancer
  • Meningioma
  • Pituitary Tumor
  • Prostate Cancer
  • Trigeminal Neuralgia