Pay Horizon Laboratory Bill  
2 Easy Ways to Pay

1. Click the link above to view and pay lab bills*

The following information will be needed:

Accession ID or Patient ID is the Accession # (starting with H) or the 6-digit Patient Lab ID on your patient invoice. 

*If you are experiencing difficulty accessing the payment portal, please consider trying a different device. A mobile device or home computer is a better choice for paying online, as some companies have firewalls that prevent these types of transactions.                 

2. Mail payment to:

                                       Horizon Laboratory

                                       Department 880561

                                       PO Box 29650

                                       Phoenix, AZ 85038-9650


Call 800-618-1514 or contact us at [email protected] with billing questions or to provide insurance information. 


You will be billed for your copayment, coinsurance or deductible after your insurance company pays their applicable portion.

Please note that the location where the lab test is performed may differ from where you had your specimen collected.



If you have received a collection notice from Professional Finance Company, Inc. please visit the company site below for all communication on the account.


PFC USA-toll free 1(855)267-7451

7:00am-6:00pm MST