My unofficial fellowship “research” project was looking at this but in ENT. My method was to pull publicly available salary data and find the highest paid docs in my subspecialty field. Eliminated any with other appointments like chairs or major non clinical roles.
Once I had a list of the top, I pulled their Medicare billing data which shows what codes they bill and how often, assuming the Medicare data is a decently representative sample. Learned a TON from this - codes and billing strategies I didn’t even know existed. And many of these docs were in the 7-figures for many years so they must have been audited at some point given they were definitely outliers.
Then serendipitously some of their former patients came my way early in practice so I had access to all their past notes and templates that I promptly adopted and which confirmed what I hypothesized from the billing data.
So if you know people billing a lot more rvus, start looking at their data and see what they’re doing.