Joy, Chen DDS/DMDAttending PhysicianGeneral Dentistry UBC Medical SchoolColumbia University College of Dental MedicineMain Office:301.874.1707 UW Medicine 3280 Urbana Pike #201£¬ Ijamsville, MD 21754 Clinic Intersts:dentoalveolar surgery, craniofacial/cleft surgery, orthognathic surgery, facial trauma surgery, and reconstructive surgery. Additional Office: 15005 Shady Grove Rd, Ste 420 Rockville, MD 20850