I consistently send him notes about visits, listing what, if any, tests I'm ordering. Within an hour of one being faxed I always get a return fax from his office, listing the tests that I just said I'm ordering, and asking me to send the results to him when they become available.
I don't know why, but I find this thoroughly irritating. I'm actually quite obsessive about sending letters and tests to referring physicians, and after years of doing so it annoys me that this one still asks. Of course, there's also the (likely) possibility that the letters go to a trained chimpanzee who reads the last paragraph, fills out the results-request form, and faxes it back without the doctor ever seeing it.
Last week, on a quiet morning due to some last-minute cancellations, I sent his office a fax on a non-existent patient saying I was ordering a "serum profactor 7-CoA." To the best of my knowledge there is no such test.
Within 15 minutes we got a note back saying "Mr. Non Existent isn't a patient in our practice. Please send us a copy of his serum profactor 7-CoA result as soon as it becomes available."
I amuse myself.