I'm not sure there is such a service. You can download the raw data on 23andme, it's just a bunch of SNPs though. I'm not sure there's much known about them other than what's already flagged by their service.
There's a actually a lot more info than what they show you. They won't show you something depending on many factors including FDA approval, etc. So there's a potential whole lot of information that you are missing out if you don't run your data through other services and tools.
I did a google search and found a bunch of resources, but I though some ppl here may have actual experiences to share.