Meet Our Physicians


The medical oncologists at Bay Area Hospital have specialized training and extensive experience. They’re dedicated to providing optimal care to every patient.
Dr. Bret Cook

Bret A. Cook, MD, medical director of Bay Area Hospital’s cancer program, is board certified through the American Board of Internal Medicine.  He is medical director for the Hematology/Oncology department at North Bend Medical Center and an active member of the Southwest Oncology Group. Dr. Cook received a bachelor’s degree in microbiology in 1990 from Oregon State University in Corvallis. Four years later, he earned twin degrees from Finch University of Health Sciences/The Chicago Medical School in Illinois: doctor of medicine and master of science in pathology.
Dr. Cook completed his residency at the University of Iowa Hospitals and Clinics in Iowa City in 1997, followed by a fellowship at Colorado Health Sciences Center in Denver. He completed his oncology requirements in 1999 and his hematology requirements in 2000. Since then he has treated cancer patients in the Coos Bay area and says he enjoys living in a rural area.

Dr. Cherry 
Born in Rangoon, Burma (now known as Yangon, Myanmar), Dr. Cherry attended medical school at Rangoon Institute of Medicine in Lamaddaw.  In 1994 she began work as a research associate at All Children’s Hospital, University of South Florida, Department of Pediatrics. From May 1997 to August 2000 she served a residency in internal medicine at Ohio’s Canton Medical Education Foundation. She completed a fellowship in medical oncology at Indiana University, Indianapolis, Indiana, in 2002.
Dr. Cherry began her practice at North Bend Medical Center in January 2003. She is a member of the American Society of Clinical Oncology, the American Society of Hematology, the Oregon Medical Association, and the Burma Medical Council, Department of Health, Rangoon, Burma.

Radiation Oncology

The Radiation Therapy Team at Bay Area Hospital is an elite corps of multidisciplinary professionals, each of them trained in oncology treatment. National certifications in their respective fields assure you up-to-date treatment, delivered with exacting precision.

Dr. Brian Fuller
Our Director of Radiation Oncology is Brian Fuller, MD. He is a board-certified radiation oncologist with a background in cancer research. 

Dr. Fuller completed medical school and a surgical internship at UCLA, before going through radiation oncology training and a residency at Stanford. He remained at Stanford to complete his fellowship in radiosurgery and radiobiology. 

He has held faculty positions everywhere from UC San Diego to the University of Virginia and is credited with starting the National Cancer Institute's radiosurgery program.



The following OHSU faculty provide telemedicine appointments to Bay Area Hospital oncology patients.

Marziarz.pngDr. Richard T. Maziarz, Professor of Medicine, OHSU School of Medicine

Dr. Maziarz specializes in treating bone marrow transplantation and blood cancers. His research interests cover how the immune system recovers after a bone marrow transplant and how the immune system works to fight cancer. Dr. Maziarz sees patients with leukemia, lymphoma and graft vs. host disease and patients who are being treated with immune system therapies.

cetnar.pngDr. Jeremy Paul Cetnar, Assistant Professor of Medicine, OHSU School of Medicine
Dr. Cetnar specializes in medical oncology and the treatment of prostate, lung, kidney, bladder and testicular cancers. In addition to participating in clinical trial research, he is also very interested in what happens outside the hospital - the social aspect of cancer care. During his fellowship, he studied outcomes research to further his interest in the "big picture" of medicine.

de-geest.pngDr. Koen De Geest, Professor of Obstetrics and Gynecology, OHSU School of Medicine
Dr. De Geest is a renowned specialist in gynecological cancers who has been voted in the top 1% of gynecologic oncologists nationally by Best Doctors in America®. He specializes in the diagnosis and treatment of ovarian cancer, endometrial cancer, cervical cancer, vulvar cancer, and Gestational Trophoblastic Disease. Dr. De Geest’s current research interests include novel therapeutics and personalized treatment of ovarian and endometrial cancer. An accomplished researcher, he has actively participated in multiple clinical trials in ovarian, endometrial, cervical and vulvar cancer as principal investigator in the Gynecologic Oncology Group. He has authored and co-authored many of the publications resulting from these national trials.

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