When you are getting ready for surgery, you should also know nothing about how or if you will be put to sleep for the procedure. Ideally you will have an appointment with an anesthesiologist in a preoperative office visit so he can go over your medical records with you to make sure you are healthy enough for anesthesia. It is bad if you show up for surgery and the case gets cancelled because there is a problem with your medical workup. It is worse if you have the surgery and a complication develops because your medical evaluation was not completed properly.
If you are having surgery performed in a surgery center, they may employ only one or two anesthesiologists. You should be able to talk to them before your surgery appointment. If you're having it done in a hospital, they may have many anesthesiologists there, making it impossible to talk to the one who will be doing your case, as case assignments may not be made until the night before the operation. If that is the case and you have questions about your anesthesia, call the hospital operator and have them transfer you to the Anesthesiology Department. They should be able find somebody to help you.
Below is a list of links to help with your preparation. It is listed by different disease states. The first one is a general guide for patients from the ASA.