Testing Locations » Oklahoma » Midwest City OK » Diagnostic Laboratory Of Oklahoma – Midwest City Md Tower – Employer Drug Testing Not Offered Diagnostic Laboratory Of Oklahoma – Midwest City Md Tower – Employer Drug Testing Not Offered Diagnostic Laboratory Of Oklahoma – Midwest City Md Tower – Employer Drug Testing Not Offered8121 National AvenueSuite 105Midwest City, OK 73110-7570 United States Near Douglas Hospital rn