Doctors who perform Doudenal switch in Virginia
I don't know whether or not they accept Medicare, but you could call the office of Dr. Troy Glembot and Dr. James Wiedower of Wiinchester Bariatrics.
Finding surgeons who accept Medicare is a problem. There are definitely some out there, but you might have to travel. Since the DS has the best statistics of any bariatric surgery for percentage excess weight loss, maintenance of that weight loss (very important!) and for resolution of almost all comorbidities, IMHO the travel is worth the effort.
Larra