Offices: Coliseum Radiation Oncology CenterDr. Simpson was born in Macon, GA and has been serving the middle ga community in radiation therapy for the past 14 years. He has been affiliated with the Coliseum Radiation Oncology Center here in Macon for the entirety of his career. He enjoys working with all cancer patients with a focus on the treatment of prostate cancer with external beam and prostate seed implant.