MedicationDispense has properties for dispenser, which is a reference to a Practitioner, and destination, which is a reference to a Location, albeit the description says "Where the medication was sent".
My interpretation of this is that dispenser should be a Pharmacist, not a Pharmacy. If I also wanted to capture the dispensing Pharmacy, it's not clear where this should go. In the case of a mail order pharmacy, I would expect "destination" to contain the location to which the medication is being sent, not the location of the mail order pharmacy doing the dispensing. To that end, I don't know what "destination" would contain in the case of a patient picking up a prescription at a retail pharmacy.
What's the intent of the destination property, and if it is intended to capture the location where the patient received the medication (e.g. shipping address for a mail order situation), where should the "dispensed from" information be captured?