Used to be common but not so much anymore since evidently they're specializing.
So, yes I guess that would be the same lab that you are referring to- Medical Diagnostics Laboratories LLC.
http://www.mdlab.com/
This is the link. I thought they were fairly common. I guess not.
It would help to have their link. But if you mean Medical Diagnostics Laboratories LLC------
There used to be another lab with that name that was considered as good as Igenex and people sent their blood work for Lyme there.
Then a few years ago, can't remember when, they became the lab for ONLY PCR/DNA tests. I don't know why they changed their focus.
This probably is the same one, but I can't be 100% sure.
Sorry, I haven't heard of them.