No, but for roughly $1k USD, you can have many big hospitals sequence your DNA for you.

They don't want you to test another person's DNA without that person's permission.

I'm not entirely sure, I mean, from my level of understanding it could all be relatively faked data and I wouldn't know any different. They claim they do quality review[0] and you can compare them to some of the competition[1], and they don't offer anything except genealogy records and your results in a big file you can download. You can use that information to parse on other sites for medical things (there's quite a few sites that take the data file as an upload, actually). I'd be interested in reading a more comprehensive audit though.

[0] - https://customercare.23andme.com/hc/en-us/articles/202904760...

[1] - http://www.isogg.org/wiki/Autosomal_DNA_testing_comparison_c...

You can download your raw data, and/or run it through Promethease: https://www.promethease.com/

(I will admit to not having compared more than a handful of SNPs with what 23andMe has to say about them, and I suppose they could have tampered with the data, but that seems like a lot of effort for the one-time payment they got from me...)