Contact
We would love to speak with you about your workers’ comp needs. Please, reach out and discuss how we can help you find a solution that works for you.
Main Office Address
CompWest Insurance Company
6 CenterPoint Drive, Suite 375
LaPalma, Ca 90623
Media
Marissa Sura
517-896-3707
[email protected]
General Contact
Toll Free: 866-206-5851
Claims Fax: 866-506-5800
Utilization Review Fax: 877-607-7419
Claims Correspondence
CompWest Insurance Company
PO Box 40790
Lansing, MI 48901-7990
Billing
CompWest Insurance Company
PO Box 734928
Chicago, IL 60673-4928
Overnight Address
JPMorgan Chase
Attn: Accident Fund Insurance Company of America 734928
131 S. Dearborn, 6th Floor
Chicago, IL 60603
888-266-7937
Agency Relations
For licensing/appointment requests, address changes, mergers, etc., email Agency Relations.
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 CompWest Insurance’s Fraud Hotline at 800-944-3728.
