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
100 Pringle Ave., Suite 515
Walnut Creek, CA 94596

General Contact

Toll Free: 888-CompWest (888-266-7937)
Claims Fax: 866-506-5800
Utilization Review Fax: 877-607-7419

Claims Correspondence

CompWest Insurance Company
PO Box 40790
Lansing, MI 48901-7990


Installment Premium Payment
(Non-Claim Related Payments)
PO BOX 101563
Pasadena, CA 91189

Overnight Address

200 North Grand Avenue
Lansing, MI 48933
888-266-7937, Select Option 2 and then Option 1
Email: Finance Inquiries

Agency Relations

For licensing/appointment requests, address changes, mergers, etc., email Agency Relations.

Medical Bill Electronic Clearinghouse

WorkComp EDI Address

WorkComp EDI
4250 Veterans Memorial Hwy
Suite 301E
Holbrook NY 11741

WorkComp EDI Customer Service Contact Info

Marisa Nappi, Customer Service
800-297-6909 X1303
Fax: 631-648-6023

WorkComp EDI Payer Numbers

Accident Fund – 10166
3CU – LS636
United Heartland – WB471
CompWest – WX214
Assigned Risk Solutions – LS721

Password Reset for AF Group Employees

AF Group employees who need to reset their password can use this link for self-service.