If you’re an employer with up to 1000 workers, you may be asked to complete the Data Match Questionnaire online at www.Datamatch.cms.hhs.gov.
Please note, the service is now transferred to the following secure website link:
What is Data Match?
The law requires the Internal Revenue Service (1RS), the Social Security Administration (SSA), and CMS to share certain information that each agency has about Medicare beneficiaries and their spouses. The process for sharing this information is called the Data Match.
How to Submit your Data Match Questionnaire:
Visit this link using a standard Web browser, accept the login warning, then you can go to the login page. If you’re the first time user, you should register first with the Employer Identification Number (EIN) and Personal Identification Number (PIN) printed above the Data Match file you received. If you have already registered, just login with your ID and password.
After login, you will have access to online documentation and a detailed user guide that provides a complete set of instructions. Follow the instructions and complete the Questionnaire.
Need help, call 1- 800-999-1118 or (TTY/TDD): 1-800-318-8782!
Learn more from www.cob.cms.hhs.gov/DataMatch