Get Directions to Doctors Barr, Poindexter & Chang D.D.S Get directions From * Start typing the address, then select from the list of suggested addresses. The route will be routed automatically To Doctors Barr, Poindexter & Chang D.D.S 33800 Alvarado-Niles Road, Union City, CA 94587 +1 510-489-4660 View details Click to load map