PeterNSteinmetz
Ejection Handle Pulled
Really? I contact countless PhDs for research purposes almost always Physics. If they sign their correspondence with Dr before the first name I will happily use that from then on. Otherwise first name, last name.
There may be a difference in subject matter there. I am often dealing with biomedical research and the chances of their having an MD is likely higher.
In the hospital or clinical setting the MDs and most PhDs are always addressed as Dr. It is part of knowing who is in charge in that setting.
In initial correspondence with people I will always address them as Dr. if I know they have one or if it is uncertain. If a person does not have a degree, then I will initially address them as Mr. or Ms. I guess I am old enough that I was taught this was good manners.