Just called my local Walgreens pharmacist to ask a

Just called my local Walgreens pharmacist to ask about the platform they will be using to track and remind patients. She said - 'No one knows anything. We are waiting for corporate instructions on every aspect of the upcoming vaccine rollout.'

Now I understand Doc's continued secrecy.
It's not quite the time to share.
He's waiting just as we are.

It all makes sense now. . .