Contact Us

Our knowledgeable staff is accessible, approachable, and always available.

As a trusted resource and advisor to the clinical laboratory community, COLA invites you to get in touch with us through whichever means of communication you prefer.

Call us toll free at (800) 981-9883
Send us a fax at (410) 381-8611
E-mail us at

Send us a letter or stop by and visit!
9881 Broken Land Parkway, Suite 200
Columbia, MD 21046

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Concerns or complaints regarding quality patient testing or laboratory employee safety in COLA- accredited facilities can be filed anonymously by:
Call (800) 981-9883 (toll free)
e-mail at

COLA investigates all complaints made against COLA-accredited laboratories. Although COLA policy is to inform a laboratory when a complaint has been made, we will not disclose the complainant’s name to the laboratory.

Customer Feedback

At COLA our goal is to promote excellence in healthcare. Feedback from our member laboratories is critical to helping us achieve this objective. If you would like to share feedback with us, please call 800-981-9883 or send an email with your feedback to us via

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