Doctor's cross-border mobility is on the rise. 1 To ensure standards, regulatory agencies adopt various criteria for granting licence to practice to nonlocally trained doctors, based on, for example, the provenance of an applicant's medical degree; the passing of a domestic licensing examination is a common but not invariable requirement. 2,3 That a medical school's standing may serve as a reliable proxy of its graduates' competency and readiness for cross-border practice is a notionally simple but methodologically complex idea. Medical degree programmes, for one, are diverse in their philosophies, designs, and deliverables, whilst "excellence" may stem from teaching and/or research in various forms. Even graduates of the same school may exhibit different levels of workplace performance, depending on the individual's aptitude, and the cultural, socio-economic and service provision environment. Recent growth in medical school number compounds the situationas of February 2021, the World Directory of Medical Schools listed 3416 medical schools worldwide, doubling the estimated figure from two decades prior. 4,5 Standards vary. 6,7 A fair, evidence-based, and publicly accountable approach is crucial if the importation without examination of non-locally trained doctors is to achieve its intended goals by gaining political leverage and societal acceptance. Two tools are available: world university rankings and international recognition of accreditation agency.