Fiance visa applications are held only briefly at NVC, just long enough for NVC just long enough for NVC to assign a Moscow case number and forward your file via diplomatic pouch to Russia.
Once her petition has arrived in Russia, your fiancee contacts the consulate requesting they schedule her interview.
There are four US consulate service locations in the Russia, but only ONE, the Consulate in Moscow is responsible for the processing of all Fiance visas. So even if your gal lives across the street from a consulate, she will still have to make the trip to Moscow for processing.
Two weeks before her interview date she undergoes a medical exam at one of the two approved clinics in Moscow
Finally she attends the visa interview at the consulate in Moscow, to demonstrate she is of good moral character and the engagement is Bona fide.
A week later a courier delivers her visa, and then she can join you in the USA.
I make the process sound simple. But its not. It is easy to make rookie mistakes that can derail the entire process.
By Fred Wahl
Your Personal Immigration Guide