We would calculate it at 3.34 CRNAs to cover the rooms for 52 weeks which would account for CRNA vacations. 1.15FTE MD for 52 weeks. The Docs in our group do all the rooms after 3:30. If you use CRNAs for this, your cost will go up either due to OT or extra FTEs. Billing and administration expenses are between 5 and 10% of the gross depending on the group. I don’t think you can run a group with CRNA employees administering their payroll, benefits and doing contract negotiations for much less than that unless the group was rather large and had economies of scale.
If the three rooms generate 1.5 million, at 7% overhead and 8 weeks vacation, the roughly 1.4 million after overhead is available to pay 3.45 FTE anesthesiologists to account for vacation which is $406,000 total comp per doc.
With 1:3 and CRNA total comp at, lets say, 275,000, the 1.4 million is minus $918,000 for the CRNAs leaving $481,000 for the 1.15 FTE MD needed which is $418,000 per MD total compensation.
So in this example 1:3 is no better than all MD. 1:4 would be a better choice if the goal was to maximize MD compensation.