Important ASAP

okay so I'm gettin a new job and they want me to get a drug and medical screening. I already know where I need to go for my drug testing but where do I go for my medical? Is it my doctor? I've never had one done in my entire life. So I'm confused . I've tried calling and emailing the lady I've been talking to buy hasn't responded back to me. I have the rest of today and tomorrow to get the tests done. Thank you