Contact Us

Locations

HCSC/Illinois
300 E. Randolph St.
Chicago, IL 60601
800-654-7385

Montana
560 N. Park Ave.
PO Box 4309
Helena, MT 59604-4309
406-437-5000

New Mexico
5701 Balloon Fiesta
Pkywy NE
Albuquerque, NM 87113
800-835-8699

Oklahoma
1400 S. Boston Ave.
Tulsa, OK 74119
918-560-3500

Texas
1001 E. Lookout Dr.
Richardson, TX 75082
972-766-6900

Other Contacts

General Inquiries
312-653-6000

Accounts Payable
312-653-6661

HR Employee Services
866-977-7378 (option 2 for Employment Verification)

Supplier Contacts
Register to be a supplier Learn more about third-party links

Link to Media Contacts