Type the person's full name--for example, "Jane Smith."
Type a comma, then type a space.
Type "Ph.D." Capitalize the "P" and the "D," but write the "h" in lowercase. Put a period after the "h" and after the "D," and do not type a space between the "h" and the "D."
Type another comma immediately after the second period in "Ph.D.," and then type a space. Now continue writing as you would normally, for example, "Jane Smith, Ph.D., earned an award for her research in psychology." Or, if the sentence ends with the "Ph.D." designation, then simply move on to the next sentence; you do not need to add another period. For example, "The institute gave the award to Jane Smith, Ph.D. Smith recently finished her research study in psychology."