The Hippocratic oath is not required in the US, and many schools that do use it have significantly modified it. Eg:
> In a 2000 survey of US medical schools, all of the then extant medical schools administered some type of profession oath. Among schools of modern medicine, sixty-two of 122 used the Hippocratic Oath, or a modified version of it. The other sixty schools used the original or modified Declaration of Geneva, Oath of Maimonides, or an oath authored by students and or faculty. All nineteen osteopathic schools used the Osteopathic Oath.