Becoming an L&I Provider

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Apply for your required L&I Provider Account Number

In order to pay you promptly for providing service to injured workers and/or crime victims, you must have an active provider account with L&I. For updated information related to provider registration/billing refer to Provider Registration/Billing Announcement.

To apply:

1. Complete a Provider Account Application and Form W-9 (F248-011-000).
2. Mail your completed forms to the L&I address on the form.

Important note: You must have an individual provider account number, even if you are in a group practice.

Prevent payment delays: Keep us informed of changes to your account

Once you have a provider account number, please notify us of any changes to your address, or business status.

To change your account information:

1. Complete the Provider Accounts Change Form (F245-365-000).
2. Mail your completed form to the L&I address on the form.

For other account changes, call the Provider hotline at 1-800-848-0811. You can also review your listing on our Find a Doctor site.

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Read more about the requirements of being an L&I provider.

• Attending Doctor's Handbook (F252-004-000).
• Attending Doctor's Return-to-Work Desk Reference (F200-002-000).
• Chiropractic Physician's Guide (F252-005-000).
• Medical Examiners' Handbook (F252-001-000).

See also Becoming an Independent Medical Examine Provider site.