We weren't aware of this Concentra location. Been to others in Carson and beyond with no problems to report. Fortunately, all we needed was a routine drug screen for work. They told us it was walk-in only. No appointments. Everything was handled very professionally and we were swiftly entered into the system. Unfortunately, the waiting is the hardest part. We arrived at 8:30 and weren't called back until 9:15. Not the end of the world. I've waited longer in the doctor's office, when I was a kid. I did notice it was not first come first serve. A few folks that came in after us were brought to the back before us. Prepare yourself for that. They performed their test and closely followed protocol. They thanked us for coming in and off we went. Important to remember this is NOT your family's doctor's office and the ladies aren't familiar with you. They are short and direct because they have a lot of people to process and little time to do it. It's not personal. They aren't being rude. Smile and be patient! 05/22 read more