The general idea is a play on police line ups and identifying the "right" person. No need to look any further, ZocDoc already has everyone gathered up for you!
There is a line up of doctors (cartoons at the moment) but the sign they hold would identify their specialty and/or location. Smaller ads could be close ups on one specific doctor and aim at one particular ailment.
i.e. "toothache?" ... (showing a dentist)
(these could run in a sequence for an online ad, or printed series)
Possible tag lines
(Can't find a doctor...?):
- We've got a whole line up!
- We've already lined up a few!
- We've found them. Take your pick.
- We've already identified a whole line up!