I am tasked with sending daily result of survey to all 200 clinics.
The traditional way of doing it is using smart list subscription, but it will be a lot of work to build and maintain 200 subscriptions.
The only way to avoid making 200 repetitions is by pre-populating the email send address, all the while auto segmenting it by Clinic ID ( a field to identify each clinic)
But is such thing even possible to do in Marketo?
Not possible with the subscriptions feature right now. You'd have to find a different way to send, like the one I alluded to here: I am trying to send a report of email opens to people that don't have a marketo license.