Not 100%, but from what I understand as long as it is an accredited place with an offline option and it is the same on the transcript, there is really no way to differentiate. I imagine there could always be a code the school puts that signifies online and might not be apparent, or the med school could contact them and I’m sure the school would be clear it was online. I’m sure it depends on the med school how strict they intend to be—some even say online classes are ok as long as there is no lab component. I think your best bet would be covering your bases on both ends—ask some med schools to elaborate on their policies, and ask the online class school how they record the credits.