Excerpt: Take two aspirin and pay our new annual fee in the morning. An increasing number of doctors are telling their patients something along those lines. With health care economics what they are today, to get a clean bill of health, you may have to pay a second bill -- a fee that helps your doctor pay his bills. Sometimes called a 'concierge fee,' it's sort of like slipping a couple of Jacksons to the maitre d' to get a good table.