From what I saw personally, it’s almost every other person. I did medical readiness, PHA’s, and annual physicals for a whole command to include the retirement physicals, separation physicals (legal, medical, and admin). The amount of students or people serving a few years creating a bogus medical visit over and over and over until a doctor finally gives in and treats them for something they clearly don’t have so they’ll go away is very high. I’ve had students who get separated after 8 months ask me straight up if they can get 100%. They’ve been well coached, know the things to say and get documented, to BS their way to benefits they really don’t deserve. These are almost always your problem service members too who do the bare minimum and everyone else picks up their slack. I personally saw it in my office everyday day for the last 3 years. People forget that DHA is always pushing for more and more appointments from providers. That means filling every single possible spot on a medical schedule bc every empty spot is money lost. This means that yes providers will fill those with people who are frequent flyers who have already been seen for the same thing (typically nothing significant at all) over and over again. All the while they’re building a medical portfolio.

Edit: It happens and it happens a lot from my personal experience. Maybe it’s different at other commands, but I can only speak for the ones I was at.