What is the correct salutation when writing to a new patient named Charles Rinkle, Ph.D.?

When addressing a new patient named Charles Rinkle, Ph.D., it's important to use the appropriate title that reflects his professional qualifications. The title "Dr." indicates that he holds a doctoral degree, and since he is being referred to as a new patient, using "Dr." shows respect for his academic achievement and professional status.

Using "Dear Dr. Rinkle:" is the most suitable salutation in this case, as it honors his title while maintaining a formal tone that is appropriate for a communication in a professional healthcare setting. This conveys professionalism and acknowledgment of his credentials, which is essential in establishing a good relationship with a new patient.

The options that do not use "Dr." fail to recognize his doctorate and could come across as disrespectful or overly informal for a patient who holds such a title. Therefore, the salutation that maintains professionalism and respects his qualifications is the correct choice.