Testing Locations » California » Bakersfield CA » Quest Diagnostics – Bakersfield San Dimas Street – Employer Drug Testing Not Offered Quest Diagnostics – Bakersfield San Dimas Street – Employer Drug Testing Not Offered Quest Diagnostics – Bakersfield San Dimas Street – Employer Drug Testing Not Offered3535 San Dimas StSte 18Bakersfield, CA 93301-1698 United States Across from Memorial Hospital. Nearest cross street is 34th Street.rnQuantiferon collection after 200pm