You are asking a college to gift you up to $250,000 worth of an education. There is no shortage of highly qualified students- domestic and international- who would also like to be gifted with an education. The college needs a reason to pick you. Are your stats at the very top of admitted students?
No. For MD, grades & test scores. For PhD, grades, test scores and research experience. Neither school will have a particular edge.
In the 2019 application cycle, 1,890 foreign applicants applied to M.D. granting programs in the United States and 325 of those applicants were accepted. PhD is a more likely path. BUT: there is even less money available for international students for med school than there is for undergrad, and many of the med schools that accept international students require proof of ability to pay upfront.