No way, no how!
Years ago this became sort of a rage. marketing companies were popping up all over the place and many billing companies lost their shirts. NO one knows your business like you. You should have complete control over how you are sold. These unscrupulous marketing companies would tell you their plan and do another.. promising clients free computers, services the BC didn't do, telling doctors they would get paid in 7 days on all claims.. etc
Some of these marketing companies got busted after scamming millions of dollars.. some didn't and closed one company to go to another..
Also, if I were a doctor, I would never hire someone who had to have someone else market them. I want to talk and be heard by the person who will be handling my income. JMO