The L&I Provider Network

L&I Medical Provider Information

Why would a physician want to join the L&I provider network or obtain a provider account number?

To treat an injured worker you need to be a network provider or have a provider account number. Simply put Doctor, some of your patients are/will be injured workers and… you want your bills paid for the treatment you provide.

L&I Rules for Washington State Medical Providers.

Washington State Providers Who Need to Join the Provider Networks: 

Washington State  Physicians, Chiropractors, Naturopathic physicians, Podiatric physicians & surgeons, Dentists, Optometrists, Advanced registered nurse practitioners, and  Physician assistants need to join the provider network.  This will allow them to treat injured workers and get paid.

You really should join the network. Your patients lose when a good doctor drops out of the system.  The injured workers of this state need your help.  Please join the network at Network Provider Application.

Washington State Providers Who Need a Provider Account Number:

If your specialty is not listed above you can  treat injured Washington L&I workers and you do not need to join the provider network. However you do need to obtain a medical provider account number.

How to join the medical provider network in Washington State.

You can apply at any time at Network Provider Application. You do not need to wait for L&I to send you an invitation. The process takes 60 – 90 days.

Washington State Provider?

  • Join the provider network if you are a
    •  Physician
    • Chiropractor
    • Naturopathic physician
    • Podiatric physicians & surgeons
    • Dentists,
    • Optometrists
    • Advanced registered nurse practitioners
    • Physician assistants
  • Get a provider account number if you are a Washington State provider not listed above.  Provider Account Application

Rules for Medical Providers out of Washington State or out of Country.

If you are a provider who is not in Washington State or is out of the United States you will want to submit the Provider Account Application (non-network) and get a provider account number. With this L&I can to pay you for services rendered.

Out of State Provider? Get a provider account number. If you are a provider in any other state other than Washington, you will want to submit the Provider Account Application- Non network so you may be paid for services. Provider Account Number Application

Out of Country Provider? If you are a provider who is out of the United States you will want to submit the Provider Account Application (Non-network) for L&I to pay you for services rendered. Provider Account Number Application

The process takes 60-90 days .  They say they will notify you of  their decision. If you are accepted, you will receive a letter notifying you of your provider account number. After 90 days, if you haven’t heard from L&I then email them at

Medical provider network and provider account number distinguished.

  • Provider Network is for the listed Washington State medical providers.
  • Provider Account Number is for:
    • Washington State providers not listed
    • Out of State providers
    • Out of Country providers

What’s Next?

Want to Contact Us:

Telephone – Call for information or a free strategy session – 206-343-1988

Email Tell us Your Story – Ask your questions via email


Call Now Button