Biography & Education


"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 is associated with Providence Cancer Center.


Areas of expertise

Radiation oncology; Benign and malignant tumors of the brain; breast cancer; gastrointestinal cancer; head and neck malignancies; lung cancer; prostate cancer

•B.S., University of Washington, Seattle, 1980 •M.D., University of Washington School of Medicine, Seattle, 1984 •Internship, residency, internal medicine, New England Deaconess Hospital, Harvard Medical School, Boston, 1984-1987 •Fellowship, chief resident, Joint Center for Radiation Therapy, Harvard Medical School, Boston, 1987-91 Board-certified Internal medicine Radiation oncology

Care Locations

The Oregon Clinic-Radiation Oncology
4805 NE Glisan St.
Garden Level
Portland, OR 97213
Fax 503-215-6387
The Oregon Clinic-Radiation Oncology Clackamas
9280 SE Sunnybrook Blvd.
Suite 100
Clackamas, OR 97015
Fax 503-513-3310