Is there a limit to the number of programs I can rank?

Up to 300 programs can be listed on a rank order list.  For rank order lists with 100 or more ranks, additional fees apply. Those fees are NOT REFUNDABLE if you certify a shorter list at a later time. View current fees

Keep in mind that if you have not interviewed at a program, the program is not likely to rank you and therefore a match will not occur.