I don`t know
The proper abbreviation is Ph.D. and it literally means philosophy doctor . . . in truth is is an academic doctorate in what ever your chosen area of study, e.g. a Ph.D. in English or a Ph.D. in Physics.
John Smith, Ph.D.
Some use PhD(c)
"Society of Jesus" Jesuits use the abbreviation. The president of Loyola University Chicago uses it after his name on letters to the student body instead of PhD, though he has a PhD.
i have a PhD in....
phd on a 10 k gold ring
If being formal, he/she is referred to as doctor.
First, you do not use both. Typically, when work related the abbreviation follows the name. For example, John Williams MD. Or John Williams PhD.
It is Dr without a period. It is form and good manners to capitalize titles. Dr. is the abbreviation for Drive. It can also be PhD, for the highest degree in doctoring in college.
Most psychologists have obtained a PhD. within the psychology field. Therefore, when addressing a psychologist the most proper salutation is to call them Doctor (insert last name here).
What is the proper salutaion for a PhD in a letter
Absolutely not! You would be impersonating someone you are not, which under a number of circumstances can lead to legal issues, prosecution, dismissal from organizations, a ruined reputation, etc.
Mr. Robert Pollack, PhD.