>Far East Massage.
1815 Willow Pass Rd
Concord, California 94520
It has one review on that other site I'm not allowed to mention or read (since I refuse to pay to become a member) and lots of reviews by women customers on Yelp.
Doesn't look like our kinda place, though I am intrigued with the idea of getting a HE there while a bunch of ladies are getting $20 treatments nearby - nicely risque'.
Other Concord area places listed are
Blue Sky Massage
4330 Clayton Rd
Pure Essence Health Center
2958 Treat Blvd, Suite D
I haven't been to any of these parlors, so I'm not recommending them, just listing them in response to the original question.