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Direct Access Testing
Involvement in your own health care is as important to Horizon Laboratory as it is to you.  Request lab tests to take advantage of convenience and low cost at the time of service.
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Medical Professionals
Horizon Laboratory is part of a healthcare team, providing resources and answers to the medical community and our business partners.
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Patient Information
Horizon Laboratory staff are motivated by compassion and they understand that a laboratory blood draw can be overwhelming. Instructions on preparing for a collection and how to receive your results can set your mind at ease.
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Location Information
Horizon Laboratory has several northern Colorado locations with short wait times, and friendly, skilled staff.  Service is available on a walk-in basis, no appointments are needed.
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Insurance and Billing
Horizon Laboratory is a preferred laboratory provider for many insurance carriers, see a comprehensive list and learn how laboratory fees may be covered by insurance. Have a deductible or copay? Easily and securely pay your portion of your lab bill online.
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About Us
Horizon Laboratory is a local leader in outpatient laboratory services. Learn more about Horizon Laboratory and our business partners in Northern Colorado and the Western Region.
Quick Links

Contact us or use the quick links below for more information.

Main Phone: 970-820-6890
Billing Phone: 800-618-1514
Order Fax: 970-820-6927

*NEW* Client Invoice Portal

Login to the brand-new Horizon Laboratory Client Invoice Portal.

Self Requested Testing

Direct Access testing is an alternative way to receive screening test results without a physician order. Test options are available at all of our patient service centers. Click Here to learn more!

Pay a Laboratory Bill

Click Here to Pay a Laboratory Bill

The Accession ID or Patient ID are the Accession# (Starting with H) or 6-digit Patient Lab ID on the Horizon Laboratory invoice.

More Billing Information

2024 Holiday Closures

Click Here to find out when Horizon sites will be closed.