Young Black Jack (2011)

Okada Masaki is the main lead in both. He also plays the role of a surgeon. Although in one he comes off as cold and distant and in the other he's the opposite of that.

Both dramas are about doctors. Both are based on famous manga by Tezuka Osamu......................................... .........

Both dramas are about young skilled surgeons who treat gangsters/criminals illegally and keep it a secret. They both started to work for those patients because they're in need for money to heal a relative.

Both are about miraculous doctors. Both are very similar............................................................................

Both are about two dark doctor rivals, one healer, one killer. Both are based on famous manga......................