TPA Alert: LA County Switches Claims Administrators

employee picture
TPA Alert: LA County Switches Claims Administrators

Effective July 1, 2019, the County of Los Angeles is no longer utilizing third-party claims administrator (TPA) TriStar Risk Management.

Claims are transferred to either York Risk Services or Sedgwick Claims Management, depending on the specific claim number. The change affects all dates of service. Claim numbers do not change, and bill review services remain the same for all claim numbers. Providers should submit all second review appeals to the appropriate new TPA, even when the original bill was submitted to TriStar.

Read on for details.

New TPAs, by the Numbers

Refer to the table below to determine which TPA now administers LA County claims that were formerly administered by TriStar. The table also lists the mailing address, clearinghouse, and electronic billing Payer ID for LA County which applies for each clearinghouse, as well as the (unchanged) bill review service:

Claim Numbers

Previous TPA

TPA Effective 7/1/19

TPA Mailing Address

Electronic Billing Clearinghouse

Electronic Billing Payer ID

Bill Review Service

Claim numbers starting with ‘2000’ or ending with ‘B’



York Risk Services

PO Box 11028

Orange, CA 92856

WorkComp EDI


Allied Managed Care

Claim numbers starting with ‘3000’ or ending with ‘C’



Sedgwick Claims Management

PO Box 51465

Ontario, CA 91761




Again, these changes apply to all dates of service, and providers must submit second review appeals to either York or Sedgwick, depending on the claim number. As always, we’ll keep readers updated of claims administrator changes for California employers here on our blog.

Stay on top of the latest updates in the world of workers’ comp billing and payment — including claims administrator changes, rule changes, and other news that can affect your practice. Click below to subscribe to our blog:


0 Reader Comments
There are no comments for this article. Be the first to comment!
How did you like the article ?

DaisyBill provides content as an insightful service to its readers and clients. It does not offer legal advice and cannot guarantee the accuracy or suitability of its content for a particular purpose.