If a new clinic and doctor encounter you for the first time, they are going to want to figure out why you have insomnia rather than throw sleep meds at you willy nilly. Be prepared to tell them why you think you are having trouble sleeping and what you have tried so far unsuccessfully. Be very familiar with "good sleep hygiene" and tell them you have tried all of those things to no avail (if it's true, of course). The doc will want to look at your trazodone prescription and if you are taking it for sleep and it is not working, he/she may want to discontinue it. Doc may want you to try other meds before giving a new patient Ambien, such as something innocuous like benadryl.

Do you know why you are having trouble sleeping? I think the ultimate goal should be to fix whatever is causing the insomnia. Sleep meds like Ambien are often prescribed only as a short term solution to tide you over until you fix whatever is causing you to sleep poorly.

Good luck. I had a sleep crisis myself last summer. It just wears you down to get no sleep.