Contact
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
P.O. Box 40790
Lansing, MI 48901-7990
Toll-free: 866-206-5851
Media Contact
Marissa Sura
517-896-3707
[email protected]
Agency Relations
Licensing and appointment requests, address changes, or mergers, etc.
Medical Billing
Provider Portal
To request bill status, a copy of an EOR, inquire on a payment or denial, or for general provider inquiries, visit https://assist.medata.com/servicedesk
To create a portal account, follow the instructions here.
Medical Bill Electronic Clearinghouse
Data Dimensions Payer Numbers
Accident Fund – 10166
3CU – LS636
United Heartland – WB471
CompWest – WX214
Assigned Risk Solutions – LS721
Paper Bill Submissions
Mailing Address:
PO Box 40790
Lansing, MI 48901
Fax Number: (517) 316-2747
Provider Relations Team
Phone: 866-206-5851
Please call and follow the appropriate prompts.
Important!
If you suspect an injury might be fraudulent, call Third Coast Underwriters’ Fraud Hotline at 800-944-3728.
