Hey there Moldovants,
No, if the medium of instruction is in English, then it's not accredited as a native language program.

But if you're asking if the 6 year programs in Russia, where the students have to move into the russian mode of instruction, I'm not sure if that qualifies as a native language (it might as the students are completely changing to a Russian medium of education).
But you would have to check up on that.

However, here are some of the reasons people gave me not to attend russian medical schools:
1) High violence rate in the country
2) Outdated technology (with a few exceptions)
3) Racism/Discrimination
4) The universities are too cheap which kind of makes you wonder what they have to offer to the students.
5) No particular advantages of graduating from a Russian medical university (as opposed to graduating from a university that's part of the European Union - as it entitles students to work or even transfer to another european country).