Group therapy (including any associated consultation with a patient taking place on the same occasion and relating to the condition for which group therapy is conducted) of not less than 1 hour, given under the continuous direct supervision of an addiction medicine specialist in the practice of the addiction medicine specialist's specialty for a group of 2 to 9 unrelated patients, or a family group of more than 2 patients, each of whom is referred to the addiction medicine specialist by a referring practitioner-for each patient