Wonder if it was more like his practice revenue was $780k and the practice had a $112k loss over the year?
If his personal income from the practice was $780 his practice revenue would have to be at least $1.6 million or higher which is doable as a solo practitioner if the practice is extremely well run and he is doing a significant amount of dentistry. Not many solo dentists can produce those numbers. If those numbers are true it wouldn’t surprise me to see billing fraud happening.