Sadly, no. We meant to have on put in when she was spayed, n then when she did the cryosurgery but forgot to ask...stupid humans. I still would like to have it done. I hear the needle is very large, the chip us about the size of a grain of rice. Not sure it it is a painful procedure or not. The first vet we went to said not to do it when she was awake..?? I'll look into it again w the new vet.