Credentials Inc. or
Credentials Order Processing Services Inc.
436 W. Frontage Rd, Suite 200
Northfield, IL 60093-3036
Main Number: (847) 716-3000
Customer Service: (800) 646-1858 or
(847) 716-3005
Fax: (847) 716-3001
Hours: 7:00 am to 7:00 pm CST Mon-Thurs
7:00 am to 5:00 pm CST Fri