Is it wrong that my mind immediately jumped to the stereotypical Jewish mother?
Not only did I do the same thing a Snommelp, but I would argue that stereotypical Jewish mother would be telling someone this--not really asking it as question...:)
There is no question mark here, but would you be able to use this as a question along the lines of 'did you know my son was a doctor ?'
No, that would be 'את יודעת שהבן שלי רופא?'
Or a more formal way: האם את יודעת שהבן שלי רופא?