DialClerk Directory

Labs and imaging

Clinical Reference Laboratory

Phone, published email, fax, addresses and the next step for your office.

2 contact routesNo directory research calls placed

lab client services

Employer Services - general inquiries, results, billing and supply requests

Official page read
Phone800-452-5677Published email

CLSContactUS@crlcorp.com

Published hours

Monday - Friday 7:00 AM - 6:00 PM U.S. Central Time

Product, plan and location

Confirm the exact product or service
National contact — confirm product and location

Mailing address

Not researched for this route

Contact page lists this for toxicology and drug testing: general inquiries, test results, billing, supply requests and clinical blood testing. Do not send PHI by email per the page.

View source ↗ · Source checked 2026-10-25

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Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

lab client services

Insurer Services (life insurance testing)

Official page read
Phone800-882-1922Published email

ILSContactUS@crlcorp.com

Published hours

Monday - Friday 7:00 AM - 5:00 PM U.S. Central Time

Product, plan and location

Confirm the exact product or service
National contact — confirm product and location

Mailing address

Not researched for this route

For life-insurance-testing inquiries: general inquiries, test results, billing. Not for clinical outpatient orders.

View source ↗ · Source checked 2026-10-25

Report an update
Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

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