I have not been to an "addictionologist". But did see a medical Dr. that specializes in addiction. The former is also a psychiatrist. I was asked about what age I started drinking/drugging, how much I drank/used, about family history regarding addictions, about physical/sexual abuse, mostly just all about me. This took about 1 to 1 1/2 hours. Then we came up with a careplan. So the addictionologist should have a plan for treatment after the interview. Expect lots of questions, be open and honest, they know bull$hi! when they hear it. Remember they are there to help you, they care or they would not do this for a living. Good luck, let us know how it goes!!