Last time I checked, from the hospitals I worked at, majority of the clinical informatics folks there had nursing background, and the two real informatics pharmacists are my preceptors. One did masters in health informatics, and the other started from inpatient but switched out to an external EHR consultant role before coming back, but both have never practiced in "clinical pharmacy" or any pharmacist role ever since the switch. And both of them don't consider themselves as "clinical pharmacists". Their offices are in the 6th floor, no longer in basement lol. The IT department downstairs had true IT folks there, someone who don't have any clinical background.
But guess what, I went to all sorts of conferences with them, and from what I saw, they clearly don't convey much convincing power to senior management. On the contrary, the senior management, which is often made up by MDs, will always listen to other prescribing MDs. Clinical informatics were just there to observe and take orders, never to give orders or influence opinions. Your "informatics pharmacists credibility" thing is clearly something imaginary and don't exist in reality.
