John,

I have had the reimbursements battles as well. I simply tell the contracted services that, if I have to take a cut, they do too or I will cancel the service. I have never had one not comply.
I have had a particular insurance company (Anthem) fail to reimburse me what it costs me to do a bone density scan ($70) but they will reimburse the hospital $160 to do one....makes no sense. But, my Anthem patients have to go to the hospital.
I guess the success or failure of ancillaries depends on the market in which you practice (disgusting that you have to think of it as a "market").
But for me,the very little extra time and headaches are far better than group or hospital-managed practice.

Leslie
Hospital Employed Physician Who Misses The Old AC

"It's a good thing for a doctor to have prematurely grey hair and itching piles. It makes him appear to know more than he does and gives him an expression of concern which the patient interprets as being on his behalf. "