Hi Heechee. Sorry you're having this trouble. Sometimes my pdoc will call me back, or his nurse, if I leave a message for him. I know every doctor's office is different. It sounds like you may not need to *see* him right away, if only you could speak with him. I would try calling during normal hours and asking to leave a message for your pdoc regarding a med he prescribed. That has worked for me, but I know it is unnecessarily hard to get past the office staff sometimes. (Why is it so damned hard??!!)
Best of luck to you. Don't give up.