I have been going to West Valley Imaging on Rainbow for almost 15 years. Their mammogram area is the best! Very professional, caring staff, fast and NO PAIN! However, if there is a concern, they will take other films or suggest an ultrasound. I had to go to another facility one year due to insurance and it was an awful experience, glad to go back to West Valley. I have had other imaging done there, with no problems. I had a billing issue once but I called and it was corrected right away.