I have to disagree with you, neuroproblem. While your grammar is confusing here, it appears you are saying "welfare" doctors make more money?

In general doctors who take "welfare" patients tend to make much less money than private pay doctors. This is why many good doctors are no longer accepting medicaid patients (and even medicare now).
Many HMO's do take medicaid or medicaid sponsored State insurance plans. These have many rules internally for testing, and medication formularies to curtail costs or deemed unnecessary treatments. So in effect, people who have one of these plans will be less tested and not using the most expensive drugs for treatments. Usually the formularies are determined by the clinic or state depending on reimbursement figures and costs.

I apologize if I misunderstand your post. This being a written format, grammar is important for understanding your postings.