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Radiation Oncology, Oncology Specialist (cancer), Radiologist
27 years of experience
Video profile
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Stephen Bader is Excellent. Dr. Bader has been reviewed by 4 patients who have provided 1 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Stephen Bader, MD is board certified in Radiation Oncology.

  • He has special expertise in 9 areas:
  • Brain Cancer
  • Breast Cancer
  • Cancer
  • Gamma Knife Surgery (Stereotactic Radiosurgery)
  • Gastrointestinal Cancer
  • Head and Neck Cancer
  • Lung Cancer
  • Prostate Cancer (Prostatic Neoplasm)
  • Radiation Oncology

Education & Awards

Dr. Bader graduated from University of Washington, Seattle. He has 3 awards.

Portland Monthly Magazine, "Top Doctors," 2009
Castle Connolly's Top Doctors™ (2012 - 2013)
Compassionate Doctor Recognition (2014)


Dr. Bader has 3 hospital affiliations:

  • Providence Portland Medical Center 
  • Providence St Vincent Medical Center 
  • Providence Willamette Falls Medical Center 


  • English

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Additional Information
Dr. Stephen Blake Bader MD is a male Radiation Oncologist, has 27 years of experience and practices in Radiation Oncology.
Where does Dr. Stephen B. Bader practice?
Dr. Stephen Bader has 2 office locations.
Dr. Stephen Bader practices Radiation Oncology near Portland, OR.
Additional practice locations include: Clackamas, OR.
See Portland Radiation Oncologists.