My wife has recently been diagnosed with breast cancer and she went to see the Oncologist, Dr. Juan Sanchez at the Institute of Oncologist, Thousand Oaks, CA. It was a very pleasant experience given the fact that she was under extreme stress because of recent lumpectomy done on her and she now has to undergo chemo and other treatment.Dr. Sanchez spent all the time needed to discuss the various aspects of the disease and treatment with patience and care. We were very happy with the Doctor, but not so happy with the Administration of the office. However, my wife ended up continuing the treatment with UCLA Health who also happened to be very caring to our utmost satisfaction.All in all, we were extremely happy with Dr. Sanchez but ended up going to UCLA Health because that suited my wife's needs and convenience better. We would have given the Doctor 5 Star but because the Administration was not to our satisfaction, overall, we gave the outfit a 4 star.