Ideally any Candidate who has completed his/her Graduation from a Recognized University and has completed atleast 16 years of formal school education is eligible for studying MBA in Japan. You should have Japanese Language Proficiency test and ideally should score more than 360 marls. And any of the English Proficiency tests like TOEFL, TOEIC or IELTS examination should  be attempted with atleast a score of 7 and above. With MBBS as an educational qualification you can certainly study MBA in Japan. You can pick any of the specializations from Finance, Law, Entrepreneurship, Accounting, Marketing, Strategic Management and Business Policy, Organizational Behavior and Human Resources Management, Financial Management and Economics. Japan Educational Institutions follow the semester system for an academic year. Every Academic Calendar has 2 semesters. Once starting in April and runs until September while the Second Semester lasts from October through March.

Yes, for MBA all you need is a graduation in any stream. MBA seems to be the most sought for post graduation option nowadays. So, if you are a doctor you must have contemplated this choice while thinking of MD or MS. There are many management specializations for medical students. If you are confused whether to change your profession as a doctor and become a manager then you should follow your aptitude. If you are very good as a doctor then you should pursue a MD or MS in the area of your interest. Or else, if you have good managerial skills then very well go for MBA where there is a lot of scope for you.