Hi! I live in Alexandria too, but have been going to Dr. Thomas Walter Scott in Falls Church for years. He is in Falls Church City so it is a little further but well worth the trip in my book. 703.241.1851 - on Little Falls Street, Falls Church, VA 22046.
Re: OBGYN in Alexandria?
A little far from Alexandria but they are good.
https://www.ratemds.com/doctor-ratings/6450/Dr-Eleanor-Yoon-FAIRFAX-VA.html
Its a group of five female doctors.