Further to my previous post, I DID find a urologist who did the biopsy under anesthsia. In fact, one of the reasons I changed from my orignial urologist was his insistence that it be done in his office with no anesthesia.
I don't know docs in Boston as I am in the DC area. I found my new urologist by asking a friend who was a hospital administrator PLUS seeing that the uro was listed in "Best Docs in DC" as published by a local magazine -- the criteria being who physicians would want to see for certain ailments. There may be a similar publication in Boston.
Also, a ton of info about a practice can be determined from their web site or a phone call. For example, my new urologist had short articles about procedures published on the web site. In the article about biopsies, it was clear he used anesthesia.
This whole deal is stressful enough, why bother with unnecessary pain/discomfort?
And, as long as you are getting a new urologist, you might as well make sure they are experienced in a procedure. Chances are that anyone who has PCa now will at least consider robotic surgery. So, why not check for an experienced (200+ procedures) robotic surgeon for your next appointment? That way you won't have to change again if you end up wanting surgery and your "new" urologist is not experienced...