Do I have any chances of getting into the Johns Hopkins Biomedical Engineering program, or any other BME program for that matter if I don’t take SAT Math 2 but instead take Bio, Chem and Physics?
See the official website. The college will show the requirement of SAT Subject Tests. But generally, it is better to take Math2.
Most colleges do not state that they require Math 2, but they highly recommend it. An 800 on Math 2 is not hard to get and takes much less studying than the three tests you mentioned.