You need to get a good idea of the demand for the clinic. Not something about adding up fixtures, but about how many real gallons per minute you are going to need.
Determine the design demand (which should be right up your alley, given your id name here) for the following:
Total demand in any 1 minute.
Total demand in any 3 minutes.
Total demand in any 10 minutes.
Total demand in any 30 minutes.
Total demand in any 60 minutes.
Then someone can figure out how much pump capacity (GPM) and pressurized storage you will need for the clinic.
You also need to know how much the well (not the pump) will produce in 30 minutes, and 1, 2, 4, 8, and 24 hours.
With that information, you (or someone) can design a system and select components.
The pump has to match the capacity of the well, although you can overpump for a short time. What the well or pump can't produce, you must deliver from storage.
That is why the total demand over various time intervals is important.
Ordinarily, the pipe size from a submersible in a well is equal to the size of the discharge of the pump. If it is a jet or centrifugal pump, it is common to upsize one pipe size because the pump inlets and outlets are often undersize because of casing design constraints.
A good starting point for demand estimate is to find the total daily demand, and take maybe 25% of that for the peak hour.