I am questioning them a lot and they have been open about what they make to some extent. For example how much they make after how many years and with how much effort.Not rheum but:
#1-Be very wary, they are going to be making money hand over first from ancillary charges you will be generating for them, do you ever get to see any of that action? How long? Is there contract language for this? Are they open about how much they make? Asking these questions might raise important red flags.
#2-For the ultrasound if they won't buy one you can get a butterfly IQ for 3k so this really shouldnt be a deciding factor.
There's ancillary too and they get a share of its profits proportional to what they contributed to it.
I know I can buy my own ultrasound but not sure if that would billable then. Especially that it would be in a large medical group that everything needs to be coded and lots of paperwork.