Well, you can find programs that would allow you to not take the MCAT at all for medical school admission:
https://www.studentdoctor.net/2014/08/want-to-skip-the-mcat-check-out-these-programs/
However, to be successful, you would still need to be a very strong student at (ideally) one of the limited group of undergraduate colleges that have a defined relationship with a medical school.