1. A medical image processing apparatus which decides assigned doctors so as to allow a plurality of doctors to share in interpreting a plurality of medical images obtained by imaging an object using a medical imaging apparatus, comprising: a processor, and a memory storing instructions that, when executed by the processor, cause the apparatus to: analyze a medical image, of the plurality of medical images, which serves as an assignment; output an analysis result; acquire information associated with a medical imaging apparatus used to obtain the medical image as the assignment target; register information representing an aptitude of each doctor with respect to interpretation of a specific lesion and information representing an aptitude of each doctor with respect to interpretation of a medical image obtained by imaging by a specific medical imaging apparatus; when the analysis result includes information associated with a lesion, decide an assigned doctor for the medical image as the assignment target based on information which is registered and represents an aptitude of each doctor with respect to interpretation of a specific lesion; and when the analysis result includes no information associated with a lesion, decide an assigned doctor for the medical image as the assignment target based on information which is registered and represents an aptitude of each doctor with respect to interpretation of a medical image obtained by imaging by a specific medical imaging apparatus.