Does a MB ChB hold a Doctor's degree?

Yes, a MB ChB (Bachelor of Medicine, Bachelor of Surgery) is a primary medical degree awarded to medical students in various countries, and it qualifies them to practice medicine. However, it is not typically referred to as a "Doctor's degree" in the same sense as a Doctor of Medicine (MD) or Doctor of Philosophy (PhD). Graduates holding a MB ChB are often referred to as doctors, but the designation varies by region and institution.