How Do I Report a Doctor from Overseas?

This is not something that I am very comfortable with but I had the worst experience of my life and after seeing this doctor had to have 3 additional surgeries to fix wha he had done to me. I tried to seek help from him at first and he was the most professional person on this planet. I really do not believe he should get away with what he did to me. I had to have 3 additional surgeries to rectify what he did to me. Who do contact in Argentina? Please advice. Thanks