W.R. Blackwelder Dentistry WR Blackwelder Dentistry19728 E Colima Rd.Rowland Heights, CA 91748 Phone: 909-594-1758Monday: 9:00am - 5:00pm Tuesday: 9:00am - 5:00pm Wednesday: 9:00am - 6:00pm Thursday: 9:00am - 5:00pm Friday: Closed