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Contact Us

For more information about our capabilities and fee structure please contact the Laboratory Director,
Dr. Christopher Chalokwu
( or by phone:  

Main Line:   630-515-0418
Fax Line:     630-515-0417
Emergency number:  630-430-4762

Mailing Address:

Medical Assay Laboratory, Inc
8205  S. Cass Ave., Suite 108
Darien, Illinois 60561


Please call the main line to schedule a blood draw or specimen pickup.  We are located at the corner of 60th and Cass Avenue off I-55