Heritage Bank of Commerce Share: Banks Visit Website Request Info 387 Diablo Road Danville, CA 94526-3308 (925) 314-2853 (925) 314-2875 (fax) Hours: Monday through Friday 9:00 a.m. to 5:00 p.m. Map What's Nearby? Distance: 5 10 15 20 25 50 mi.