Phony physician
Else clues• Charlatan
• Disreputable doctor
• Do like Donald
• Doc who's a crock
• Dubious doctor
• Duck sound
• Ducky declaration
• Malpractice suit target
• Malpractice target
• Mountebank
• Nostrum purveyor
• One selling bottles of sugar and arsenic, say
• Phony doctor
• Sham doctor
• Snake oil salesman
• Sound from the pond
• Unlicensed physician
• An untrained person who pretends to be a physician and who dispenses medical advice
• The harsh sound of a duck