I knew Dr. Chen long time ago since when he worked for a dental group on Noriega St. and Stonetown Med Ctr. Nowadays, he & his brother build up their own business & moved to a new place on Ocean St, which is half block away from Junipero Sierra Blvd. I’ve sensitive tooth & always called him for an emergency surgery & Dr. Chen always finished up the work perfectly. I won’t find another DDS unless he’s early retired!!!