What will happen if I add an exsisting pro account on a zoom pro account

Q1. I have integrated zoom api on my web app and the flow is that we will take clinician pro zoom account and will add on our zoom app. Will their pro account will be working as usual, if not what is the best solution??

Q2 . Also is there any api where clinician can send request to our zoom app to add their account on our zoom app?

Note:- I don't want to pay for the clinician licensed accounts, they may use their own pro account.