Dr. Brent Tinnel is a board certified Radiation Oncologist who is excited to join Tacoma Valley Radiation Oncology Centers at Capital Medical Center and serve his home community. He earned his Bachelor Degree from Seattle University. Upon graduating with honors, he was commissioned as an officer in the United States Army.

He earned his Medical Degree at the Uniformed Services University of Health Sciences in Bethesda, MD, during which time he was elected into the National Medical Honor Society. He completed his Internship at Madigan Army Medical Center and his Radiation Oncology Residency training at the Indiana University School of Medicine in Indianapolis, IN in 2006. He initially served four years at Walter Reed Army Medical Center in Washington DC and then in 2010, transferred to Madigan Army Medical Center in Tacoma, WA. He completed his Army career, retiring as a Lieutenant Colonel after having served as the Chief officer of the Radiation Oncology Services at both Walter Reed and Madigan Army Medical Centers.

During his service time, he developed and performed clinical research into advanced technology radiation treatment programs at both centers, including introducing Intensity Modulated Radiotherapy techniques, High Dose Rate brachytherapy, Stereotactic Body Radiotherapy, Radiosurgery, advanced motion tracking systems and remote proton therapy planning. Dr. Tinnel is an avid runner who loves mountain sports, especially snowboarding. On a rainy evening he can be found watching sports, or a good movie with his wife.