There are Rheumatologist that can deal with Lupus. The hard part is finding one. Have search http://health.usnews.com/doctors/location-index..., try this. Research their background too.
http://www.medicinenet.com/systemic_lupus/grand...
http://www.lifescript.com/doctor-directory/cond...
Here are several sites to help you.

I'm having a very difficult time finding a rheumatologist in my area that will listen and will take the time to explain things to me about lupus. The two in this area are not familiar enough with lupus. They deal more with arthritis and such. If you don't test positive on each visit, they won't spend time with you, and as we all know, testing positive usually depends on your body and if you're in a flare for example. They won't prescribe pain Medes. They send you to your primary physician; which I prefer anyway.

Here's a website you can check for drs near you, www.healthgrades.com it covers the United States.

Yeeeeaaaaaah!

I think I have found some luck with getting a Rheumy, soooooooooo hope it happens : )