Regarding
1. "I'm afraid that showing up without and appointment may simply be a waste of time."
2. "I'd call and get an appointment with the medical director"
I have a different way of going about things. Your way is actually the normal, civilized way, no doubt about that. But, here's what 'really happens' when done your way.
a. Pain patient calls and asks for the medical director.
b. Receptionist answers and asks, "who's this," and then gives a "non-answer" that such-and-such Medical Director is 'unavailable,' so you leave a message.
c. Receptionists looks over to Medical Director (who was probably standing right there, texting his wife about groceries) and says, "That Pain Patient that tested Positive called, what should I tell him?"
d. Medical Director says, "Tell 'those people' that I am busy, and that it is our policy blah blah blah, and they can go blah blah blah.
e. Receptionist and Medical Director have another short-and-jovial discussion about "all those 'abusers' out there, and how they complain, and how they'll say anything to get their drugs.
f. Assistant phone receptionist within hearing distance chimes in and says, "Yep, we had another one calling in and b**ching and moaning just an hour ago..."
Now, MY way (the "show up with a suit") goes like this:
a.) Receptionist to Medical Director: "This gentleman was in here asking for you."
b.) Medical Director: "Oh really? Who?"
c.) Receptionist: "I don't know, but he was wearing a suit, and it sounded like it was something important.
d.) Medical Director: "Well, call him back, have him stop by after 4.
So, there you have it. Maybe I watch too much TV... (or, maybe I just have really good hearing, and hear how people talk about others behind their back), that's why I suggested my way.
However, I'm open to criticism (you can tell me I'm nuts, and I won't be offended).
But, I believe 'my way' will at least get an 'audience' with an important person.
There are many reasons for erroneous urine test results. If you search this site, I've written much about it, and given links to other papers describing how errors can occur. It might help to share this information with your doc.
I'm afraid that showing up without and appointment may simply be a waste of time. Pain patients aren't very good at sitting around waiting rooms. I'd call and get an appointment with the medical director of the clinic to straighten this thing out.
I wonder if Sudafed can cause a false negative for methamphetamine? I don't really know. You may find this information by searching "false positive urine screen methamphetamine"
Be forthright, hold your head up, and speak your truth. You may have to find another pain doctor, and it is unethical for your current doc to just cut you off if you are opioid dependent. Remember to say so, but be polite.
Think of this as a problem that needs resolution, not as a personal affront.
Best wishes.
This sounds flippant... but this is *exactly* what I would do.
Dress up in your nicest suit (if you're a man... otherwise, your nicest most conservative dress), show up unannounced, and ask to speak to the president of the corporation that owns your pain clinic (do a little research, find out the TOP person... not a "desk supervisor" or "staff manager." No, you want the biggest big boss).
They will ask what for, etc., just say "a technical matter involving staff, and you don't want to go into it with him/her." They will, of course, say they are not available right now, blah blah blah, then say, "No problem, may I make an appointment."
They will likely say, "no," but will ask for your name and number (e.g. "We'll see if we can leave a message and they will contact you."). That's fine. Give it. And then wait, and wait, and wait. If they don't call you, repeat the process.
Eventually, you will have an audience with the big dog.
That's where you explain the situation, offer to do whatever they ask, take whatever test you need to take, YOU will offer to pay, yadda yadda.
And, then, see what happens.
That's what I would do.
Anything else won't work.