Wow the first part was already a great plan and you even made the better plan for getting paid with crypto with that benefits. For sure your customers would like to take on those discounts if buying that plan through bitcoin will be their way, they won't pass that opportunity.
All the things you said are to take into considerations, but first; i need to see if there is a market or not...
You can market that through posting it outside your clinic, like the usual streamer or banner of "Bitcoin accepted here".