For what it’s worth, as a massage therapist I’ve interviewed with some chiropractors and know plenty of other therapists who have worked for them. The number of chiropractors NOT doing some kind of shady billing or breaking some other scope of practice/ethical boundaries is shockingly small. I’m sure they exist, but in swapping stories with other therapists over almost 2 decades, I might know 1.
For example, one Chiro I interviewed with had his “program” set as patients being categorized into “back” or “neck” patients. Depending on which you were categorized into determined how many sessions (manipulation plus other therapies) per week for 8 weeks the patient would receive. After 8 weeks he would reassess. Seriously waiting 8 weeks to see if it’s helping. He knew what insurances would cover, so he cookie cuttered his whole practice. From what it looked like I don’t think people “graduated” by getting better, moreso just once they ran out of money.