Both have operations with transplants. Both have a main character who cares deeply about patients. Both have a reasonable numbers of operations. One is more about revenge (cross), but overall both have elements like corruption and all.
Two must watch for who likes the genre.

This isn't a medical drama, but it felt somewhat similar. They both have abuse in the workplace, corruption and growth of characters (especially the male lead in both drama). As well a caring and nice female lead who stands out.