Customer Service
Submit orders, change existing orders, address updates, shipment questions, website assistance, and more.
Technical Support
Off-schedule testing, reporting and evaluation questions, instrument and sample troubleshooting, and more.
DataDirect
DataDirect questions and assistance with using the laboratory information system (LIS) to transmit proficiency testing results directly to the API.
International EQA/PT
GlobalCustomerService@api-pt.com
Contact us for international EQA/PT questions, pricing, ordering assistance, and support navigating API services outside the United States.
Billing Inquiries
Statement questions, invoice requests (existing orders only), credit memos, payment submissions, and more.
Call Us:
800-333-0958
Monday thru Friday
9:00am-4:00pm EST
(closed for lunch from 12pm-1pm)
General Inquiries
Addresses.
Head Office
American Proficiency Institute
1159 Business Park Drive
Traverse City, MI 49686
Remittance Address (Clinical Accounts Only)
American Proficiency Institute
PO Box 7592
Carol Stream, IL 60197-7592
