May a physician charge a fee for treating a patient whose life is in danger?

This source-based Torah study examines the question: May a physician charge a fee for treating a patient whose life is in danger? The canonical Hebrew article develops the issue through the weekly Torah portion and the sources cited there. This localized discovery layer preserves the question and the source identity; it does not add any new halakhic, medical, legal, scientific, historical, theological, or empirical ruling or claim beyond the canonical Hebrew source.