No, you don't have to go in for an interview. You'll have no problems as long as you have either a new I-20 or the old one you used before. If you have the old one it should be stamped or signed by the appropriate school official to show that they are expecting you back.
I reentered the US after a 10 month absence using the old F-1 visa, a new I-20, and a SEVIS fee receipt.