Private practice USA Endo needs

Just curious whether there is a need in some US offices, or if some US private offices would benefit from a doc coming in and doing Endo at their gp for a 50/50 or 40/60 split or close to that for 1 to 2 days a week, or whether it's easier to send out to Endo and just restore. I know some gps run efficiently on just doing resto work in house and referring all else out and others do everything, so wondering if there's even a market for that kind of thing.