You've just calculated your breakeven (without taking money out of the business), important first step!
We recommend establishing how many people you want in your full patient panel down the line. From there work backward to determine your desired length of visit, days in-office each week, & vacation time. This will give you a set number of visit slots in which to see people in-office.
If you have had an existing practice, you can estimate the number of times your patients come in the office (average is 3-4x/year). Build some "firebreaks" into the schedule as well as some walk-in/acute spots if you are promising same day/next day visits.
This is basically a sensitivity analysis where you can input different numbers and see the resulting revenue, panel size, and lifestyle outputs of your new practice. Doesn't take long to put together. Most important part is keeping expenses low and building from there. Pricing also depends on the socio-economic situation of your area as well as cost of living.