The term "priestdoctor" itself is not widely used in common language, so finding synonyms can be a challenge. However, there are a few words that may convey a similar meaning. For instance, "healer" often refers to someone who administers spiritual or physical remedies to others. "Counselor" is another term used to describe a person who provides guidance and advice to individuals in need. "Spiritual guide" or "spiritual leader" may also be appropriate alternatives for those who combine religious and medical practices. Overall, finding the right synonym depends on the specific context and connotation desired.