Complete Guide to Compass Oncology for referring providers. Compass Oncology is the largest multidisciplinary practice in the Pacific Northwest dedicated solely to providing state-of-the-art care for patients with cancer and diseases of the blood. The Compass team is comprised of physicians who specialize in medical, radiation and surgical oncology, hematology, pathology and palliative care and work collaboratively to provide high quality, evidence-based cancer care. Our team routinely treats all cancer types, even rare cancers, and includes members with advanced sub-specialization in particular cancers and nonmalignant blood disorders.