Simi Valley Radiation Oncology Cancer Center Simi Valley Radiation Oncology Cancer Center is located on 2985 Sycamore Dr in Simi Valley. They can be reached by phone by calling (805) 584-6611 . They can be reached by calling (805) 584-6611 . They can perform the following procedures / treatments: Intensity Modulated Radiation Therapy, Image Guided Radiation Therapy, Intravenous Therapy, Radiation. They have a single review on MojoPages.com, and it's a positive review.