As in direct primary care, concierge medicine physicians take care of far fewer patients than in traditional fee-for-service medicine—sometimes no more than 50. (In contrast, primary care physicians practicing in the traditional fee-for-service model usually care for 2,500 to 4,000 patients, seeing 20 to 22 of them per day.)
An good way to think about the difference between direct primary care and concierge medicine is that concierge medicine was designed to serve the wealthy while direct primary care was designed to serve everyone else, including employers.