Point well taken. However, how can a practice change the net % collection on you if the contract explicitly states that this is the % you'll get if you generate x amount of money, etc?
The same way that they could pay you less per wRVU if your contract explicitly states that they will pay you $X/wRVU. As Mohs01 points out contracts are generally not in perpetuity. Most of the time they are just renewed on an annual basis.
Not to be annoying, but what other type of information would I need other than payer mix to determine whether a wRVU contract w a MSG is more favorable than a % net collections from a SSG? I have access to MGMA data for the area that I'm interested in. Thanks!
I don't think you're being annoying, and you are to be commended in that you are actually thinking about the problem in the correct way. Sadly, most residents in your position don't even get as far as you have. They just look at the guarantee and if that seems like enough they don't look into the details that closely. Most groups that you are going to negotiate with are not going to provide you with the detailed data that they possess that would allow you to make an exact comparison, so you're going too have to make a lot of estimates and assumptions, but you can probably get close. Here's some of the information you would need:
-An estimate of how much work you will actually do each day. Not just number of patients a day, but how many times will you code each cpt code on average.
-What their payer mix is (i.e., on average their payers reimburse X% of medicare)
-How successful are they at actually collecting what they bill for (this is probably the hardest to get a handle on for a variety of reasons).
Once you have this data, it's just a simple arithmetic problem. For a full-time Mohs surgeon, this is not too difficult, but for a high volume general dermatologist it will take more time. The answer will not be perfect, but it will get you close to what you need to know.