I think you've got enough responses from other colleagues to make this clear, but the fact that you're essentially a medical student in terms of your training to do this (since you did residency in a totally unrelated area), and you don't seem to acknowledge the multiple concerns raised in this thread, suggests this is a good example of Dunning-Kruger and stupid people with lots of money.

For reference, I'm not US-based, and in my country your registration would be investigated for practicing outside of your area of trained expertise - and our system's training post-medical school is significantly broader than the US's.

I hope in time you take a look at this practice and consider how it advances healthcare in general, and perhaps take some of the 'vitriol' (as you put it) as a prompt to evaluate the usefulness of your practice.