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Welcome to L&I

To get paid for services, all providers must have an active L&I provider number. 

Visit our ProviderOne website to learn about the transition to ProviderOne for enrollment and account updates.

Effective December 5, 2022 individual providers who meet the following criteria will use ProviderOne to enroll:

  • Never worked for L&I
  • Bill for themselves
  • Not enrolled in ProviderOne
  • Plan to enroll with only L&I

To get started, use the "Apply with ProviderOne" tab below. Paper applications will no longer be accepted for these providers. 

All other providers, organizations, and facilities will continue to apply as they do today. Use the appropriate tabs below. 

HIPAA covered entity healthcare providers must provide an NPI (National Provider Identifier) when applying. 

The following provider types are exempt from using ProviderOne. Use the "Exempt Provider Application" tab below to get started: 

  • Interpreters
  • Independent medical examiners
  • On the job training (OJT)
  • Veterans Affairs (VA) facilities
  • Third party pharmacies
  • Clearinghouses

Out of country providers, apply here

Network Provider Application

Do you need to be in the Medical Provider Network?

New to L&I and bill for yourself? Use the "Apply with ProviderOne" tab for enrollment instructions. 

Note: If you are not one of the specialty types listed below, this is not your application, visit the Provider Account Application tab.

If you practice in Washington State and are one of the following provider types, you must be in our network to care for injured workers beyond the initial office or emergency-room visit. This includes treatment for workers of business covered by L&I as well as those employed by self-insured employers:

    • Physician (MD & DO)
    • Advanced Registered Nurse Practitioner
    • Chiropractor
    • Dentist
    • Naturopathic Physician
    • Optometrist
    • Physician Assistant
    • Podiatric Physician

How to apply to be a Network Provider

You have two options:

Option 1: Apply on paper

1. Complete, print, and sign the following:

Medical Provider Network Application Packet (F245-447-000) and Washington Practitioners Application (F245-411-000) (WPA)

    • Please follow the instructions in section one of the WPA, and
    • Submit current copies of the documents noted in Section 1.
    • Before submitting your complete application,

Verify the Tax ID on the Office of Financial Management (OFM) Vendor/Payee Registration form (Step 3, below) and the Tax ID on page 2 of the WPA match.

2. Send your application materials to:

Email: ProvNet@Lni.wa.gov
Fax:     360-902-4563
Mail:
Provider Accounts and Credentialing
P O Box 44261
Olympia, WA 98504-4261

Note: The OFM forms (Step 3, below) must be completed concurrently with the submission of the WPA to avoid potential delays in payment.  

3. The Office of Financial Management (OFM) will need to register your Tax ID to issue payments.  You will need to submit forms directly to OFM for: 

  • New Tax ID
  • Enrollment/change for EFT payments
  • Updates to the Legal Name associated with your Tax ID
  • OFM forms can be found by following the link: ofm.wa.gov/payee  

    For questions regarding OFM forms or the registration process, call 360-407-8180 or email: PayeeRegistration@ofm.wa.gov

    It is the provider's responsibility to submit the necessary forms to OFM, directly. L&I cannot accept or forward OFM forms on behalf of the provider. 

    Option 2: Apply online with OneHealthPort (OHP)

    1. First, please read, sign, and submit the following: 

    • Provider Agreement (F245-397-000), and
    • A copy of your Federal IRS Form W-9 (for Tax ID listed on WPA, page 2).

    Please make sure your request includes: 

    • A request to pull the provider application from OHP
    • The provider name
    • The provider's Individual NPI number

    2. You may fax, email or mail the completed L&I forms to the following:

    Email: ProvNet@Lni.wa.gov
    Fax:     360-902-4563
    Mail:
    Provider Accounts and Credentialing
    P O Box 44261
    Olympia, WA 98504-4261

    Note: The OFM forms (Step 3, below) must be completed concurrently with the submission of the WPA to avoid potential delays in payment.

    3. The Office of Financial Management (OFM) will need to register your Tax ID to issue payments. You will need to submit forms directly to OFM for: 

    • New Tax ID
    • Enrollment/change for EFT payments
    • Updates to the Legal Name associated with your Tax ID
    • OFM forms can be found by following the link: ofm.wa.gov/payee

      For questions regarding OFM forms or the registration process, call 360-407-8180 or email: PayeeRegistration@omf.wa.gov

      It is the provider's responsibility to submit the necessary forms to OFM, directly. L&I cannot accept or forward OFM forms on behalf of the provider.   

      4. Follow OneHealthPort's Getting Started/Sign In instructions for setting up your account correctly in ProviderSource.

      Note: If you already have an established account in ProviderSource, proceed to step five.

      5. Apply online through the OneHealthPort website.

      6. Verify the Tax ID on the OFM  vendor/payee form (Step 2) matches the Tax ID on page 2 of the WPA.

      7. Make sure you check the L&I box in the Attestation tab.

      8. You must re-attest so we may receive your application.

      Is your application complete?

      Incomplete applications or missing information delays account set up and payment of services to you.

      To ensure timely processing, use the Medical Provider Network Credentialing Checklist (F245-445-000) to identify missing information.

      What to expect from L&I

      To process complete applications, allow 120 days. If additional information is needed to process your application, we will contact you.

      You will receive a letter in the mail once your application is processed.

      What is my application or network status?

      Having a provider account number or reactivating a closed account does not mean you are in our network. If you do not see that you are a network provider and want to treat an injured worker for ongoing care, you must apply.

      To check your application or network status, search by:

      L&I provider number or National Practitioner Identification (NPI) number

      What happens if I don't join?

      If you treat an injured worker for ongoing care, beyond the initial visit to file the Report of Accident form, you must be an approved network provider to be paid for services. Please refer the injured worker to a network provider.

      Find a network provider for patients that need ongoing care.

      Provider Account Application

      Provider Account Number (non-network)

      New to L&I and bill for yourself? Use the "Apply with ProviderOne" tab for enrollment instructions. 

      If you are not one of the provider types required to join our network, or if you practice out-of-state, you should apply for a provider account number with L&I.

      Here's how to apply:

      1. Complete a Provider Account Application (F248-011-000).

      If you are one of the following provider types, you have additional requirements. To fulfill those requirements, visit:

      2. Submit your completed L&I application (including additional requirements, if indicated above) to:

      Email: PACMail@Lni.wa.gov 
      Fax:     360-902-4484
      Mail:
      Provider Accounts and Credentialing
      P O Box 44261
      Olympia, WA 98504-4261

      Note: The OFM forms (Step 3, below) must be completed concurrently with the submission of the Provider Account Application to avoid potential delays in payment.

      3. The Office of Financial Management (OFM) will need to register your Tax ID to issue payments. You will need to submit forms directly to OFM for: 

      • New Tax ID
      • Enrollment/change for EFT payments
      • Updates to the Legal Name associated with your Tax ID
      • OFM forms can be found by following the link:  ofm.wa.gov/payee

      For questions regarding OFM forms or the registration process, call 360-407-8180 or email: PayeeRegistration@ofm.wa.gov.

      It is the provider's responsibility to submit the necessary forms to OFM, directly. L&I cannot accept or forward OFM forms on behalf of the provider. 

      Returned Application? 

      1. Follow instructions on cover sheet.
      2. Send updated application and forms to: 

      Email: PACMail@Lni.wa.gov 
      Fax:     360-902-4484
      Mail:
      Provider Accounts and Credentialing
      P O Box 44261
      Olympia, WA 98504-4261

      Next Steps

      Allow 60 - 90 days for review of your application. We will notify you of our 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 us, please email us at PACMail@Lni.wa.gov.

      Apply with ProviderOne

      ProviderOne is an online portal where you can submit an application to enroll with multiple state agencies. For more information about the ProviderOne transition, see our ProviderOne website

      If you are one of the following providers, click on the link below for additional instructions: 

      If you're new to L&I and bill for yourself, apply for an L&I account through ProviderOne

      Tips for Success

      Use our ProviderOne guides for step-by-step instructions on how to enroll. The guides are available in the "Resources" tab above. 

      Avoid payment delays! Upload ALL necessary documents before submitting your application or it will be returned. 

      Use your Application ID and SSN/FEIN to check your application status

      Returned Application? 

      1. Login to ProviderOne.
      2. Correct missing or incomplete information. 
      3. Use the appropriate enrollment guide (see "Resource" tab above) as a resource. 
      Resources

      Select the right guide: 

      Individual billing or servicing provider

      • Individual billing: A provider who is a sole proprietor and submits their own bills
      • Individual servicing: A provider who works for an entity who bills on their behalf

      Group

      • Group: An organization of individual providers who offer services. You'll need to link at least one servicing provider when creating your group account. 

      Facility, Agency, Organization, or Institution (FAOI)

      • FAOI: A facility, agency, organization, or institution that doesn’t have servicing providers
      Use this table to identify which type of ProviderOne application and guide applies to you. 
      Provider Type Guide
      Adult Family Home FAOI
      Ambulance FAOI
      Ambulatory Surgery Center FAOI
      Audiologist, Certified Individual Billing or Servicing
      Boarding Home FAOI
      Bookstore FAOI
      Brain/Head Injury Program (Rehabilitation) FAOI
      Chiropractic Clinic Group
      Chiropractor Individual Billing or Servicing
      Clinic Group
      Dentist Individual Billing or Servicing
      DME Home Infusion Therapy FAOI
      DME Supplier FAOI
      Drug/Alcohol Treatment Facility FAOI
      East Asian Medicine Individual Billing or Servicing
      Free Standing Emergency Room FAOI
      Hearing Aid Fitter/Dispenser Individual Billing or Servicing
      Home Health Agency FAOI
      Home Modifications FAOI
      Hospitals FAOI
      Independent Diagnostic Testing Facility FAOI
      Investigative Services FAOI
      Job Mod/Pre Job Supplier FAOI
      Laboratory Facility FAOI
      Licensed Massage Therapist Individual Billing or Servicing
      Lodging FAOI
      Master Level Therapist (Pilot Program) Individual Billing or Servicing
      Naturopath Individual Billing or Servicing
      Nurse Individual Billing or Servicing
      Nursing Home FAOI
      Occupational Therapist Individual Billing or Servicing
      Occupational Therapist Clinic Group
      Optician Individual Billing or Servicing
      Optometrist Individual Billing or Servicing
      Osteopathic Physician Individual Billing or Servicing
      Pain Clinic - Dolorology Group
      Pharmacy FAOI
      Physical Therapist Individual Billing or Servicing
      Physical Therapy Clinic Group
      Physician Individual Billing or Servicing
      Physician Assistant, Certified Individual Billing or Servicing
      Podiatrist Individual Billing or Servicing
      Private Transportation (Taxi, Bus, Airline) FAOI
      Prosthetist/Orthotist Individual Billing or Servicing
      Psychologist Individual Billing or Servicing
      Public Transportation FAOi
      Radiologists FAOI
      Respiratory Therapist Individual Billing or Servicing
      Schools (Retraining Services) Visit Becoming a Training Provider
      Skilled Nursing Facility FAOI
      Speech Therapist Individual Billing or Servicing
      Vehicle Modification FAOI
      Vocational Providers Visit Becoming a Vocational Provider

      Other Resources

      The Provider Types and Specialty document will help you complete Step 3 or 4 in the ProviderOne application. 

      Questions? 

      Send your questions to LNIProviderOne@Lni.wa.gov

      Exempt Provider Application

      Here's how to apply: 

      1. Complete the Provider Account Application (F248-011-000). 

      2. If you are one of the following providers, click the link below: 

      3. Submit your completed L&I application and all supporting documents to either: 

      Email: PACMail@Lni.wa.gov 
      Fax:     360-902-4484
      Mail:
      Provider Accounts and Credentialing
      P O Box 44261
      Olympia, WA 98504-4261

      4. Avoid payment delays! Go to ofm.wa.gov/payee and submit the Vendor/Payee Registration form directly to the Office of Financial Management (OFM) for: 

      OFM forms must be submitted at the same time as your Provider Account Application. 

      Note: Providers are responsible for directly submitting necessary forms to OFM. L&I cannot accept or forward OFM forms on behalf of the provider. 

      For questions regarding OFM forms or the registration process, call 360-407-8180 or email PayeeRegistration@ofm.wa.gov

      Next Steps

      Allow 60-90 days for application review. We will notify you of our decision. After 90 days, if you haven't heard from us, please email PACMail@Lni.wa.gov