From what I know, there are no simple tooth extractions. Today it is a kind of surgical procedure.
It's considered oral surgery but unless complications like impaction or dry socket occur it's simple. If I was going to have a tooth extracted I would go to a Denture Clinic. The dentist are far more experienced in doing extractions and IMO less painfull. I had both upper and lower teeth extracted in about 4-5 visits and I saved a lot of money. Average cost roughly $35-50 a tooth with discounts on multiple extractions.