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CMS-1500 mandatory electronic submission takes effect August 1, 2025. Learn more.

Insurers

OnBoard: Limited Release, the first phase of the Board’s new online information system, is now available!

Insurer survey Payer Toolkit

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Processing Workers’ Compensation Claims

Coverage Requirements for Specific Employment Situations

Board Assessments

Information and forms to pay quarterly Board assessments

Insurer Listings

Insurer ID (W Number)

Insurers and employers who have been approved to self-insure for workers’ compensation benefits in New York State are assigned a 7-character identification number beginning with a W (known as a “W Number” or “Insurer Code (ID) Number”) by the Workers’ Compensation Board. This number is used to identify workers’ compensation coverage in the Board’s insurance coverage system and to gain access to electronic case files for workers’ compensation claims (eCase) and filing of required documentation.

3C Coverage

Insurers writing out-of-state employer’s workers’ compensation insurance policies who are not authorized to write workers’ compensation and employers' liability coverage in New York by the NYS Department of Financial Services, must file the Consent to NYS Workers’ Compensation Board Jurisdiction for Non-New York Licensed Insurers (3C Coverage) with the Chair for 3C coverage to apply on a policy.

Online Services

Find links to all available online services from the Board.

Health Insurer Match Program (HIMP)

The Health Insurance Matching Program (HIMP) provides a mechanism for health insurers to seek reimbursement from employers and workers' compensation insurers for payments made for treatment that should have been covered by a workers' compensation claim.

Electronic Submission Partner Designation

Effective October 1, 2021, payers are required to have one or more designated Board-approved electronic submission partners. At least one electronic submission partner should be designated by October 30, 2021.

Latest Insurers News

Efficiency Enhancements: Issue 6, RFA-1LC

April 22, 2025

April is Language Access Month!

April 15, 2025

DB-PFL Proof of Coverage penalty update

April 11, 2025

CMS-1500 electronic mandate approaching! Cost offset available now.

April 10, 2025

Important updates to C-300.5 and C-312.5 forms

April 7, 2025

Updates regarding Section 32 waiver agreement forms

April 7, 2025

Reminder: Durable medical equipment prior authorization request enhancement

March 27, 2025

Coming soon: Durable medical equipment prior authorization request enhancement

March 24, 2025

Show your support! 2025 State of the State proposals

March 19, 2025

Mental injury legislation

March 7, 2025

Governor Hochul Announces Historic Proposals to Improve Workers' Access to Medical Treatment

February 26, 2025

PREPARE TODAY: Multifactor authentication for eCase

February 21, 2025

Amending Board decisions to address typographical or other minor errors

January 3, 2025

Register today! New York State Workers' Compensation Conference 2024

August 19, 2024

Register now for the Small Business Tour

June 26, 2024