Main Office Address
We would love to speak with you about your workers’ compensation insurance needs. Please reach out to learn how 3CU can help you find a solution that works for you and your business.
Third Coast Underwriters
200 W. Madison St. Suite 3850
Chicago, IL 60606-3465
Toll-free: 866-641-23CU (2328)
Licensing and appointment requests, address changes, or mergers, etc.
Medical Bill Electronic Clearinghouse
WorkComp EDI Address
4250 Veterans Memorial Hwy
Holbrook NY 11741
WorkComp EDI Customer Service Contact Info
Marisa Nappi, Customer Service
WorkComp EDI Payer Numbers
Accident Fund – WK101
3CU – WK101
United Heartland – WB471
CompWest – WX214
Password Reset for AF Group Teammates
AF Group teammates who need to reset their password can use this link for self-service.
If you suspect an injury might be fraudulent, call Third Coast Underwriters’ Fraud Hotline at 800-944-3728.