Are you filing Single and are the Medicare wages in box 5 of your W-2 greater than $200,000 or filing Married Jointly and the total of all Medicare Wages in all of the W-2's greater than $250,000?
If not, then you need to check what you entered in the TurboTax program for box 5 of the W-2's. You may have entered a misplaced decimal point or a comma instead of decimal point.
