Your Comfort Is A Primary Concern. We know the idea of dental treatment can build anxiety. The successful relationship we take great pride in, is not only state of the art dental care but providing it within an environment of comfort. Map To Our Office. O'Brien & O'Brien, D.D.S., PC. 1503 Coit NE. Grand Rapids, MI 49505.Home‧Meet Our Staff‧Our Services‧New Patients‧Hours and Location‧Teeth Whitening.