
Lidia G. answered 04/18/19
IELTS examiner, M.Ed - IELTS, ESL, Russian classes
The best thing you can do is to check with every school you will be applying to, because their language requirements vary a lot. They may sometimes require TOEFL even from those who have a Master’s from an American university if you graduated more than three years ago.
Generally though, you will be required to take IELTS/TOEFL if your primary language of instruction was not English.