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Report a Change of Tax ID (Other than Change of Ownership)
Report a Change of Tax ID (Other than Change of Ownership)

Report a Change of Tax ID (Other than Change of Ownership)


Best Practices for Change of Tax ID

  • Take advantage of PECOS to complete your enrollment application
  • If not e-signing, remember to mail the signed and dated certification statements
  • Verify that you are using the correct version of the CMS-855 (07/11)
  • Verify that you are using the correct version of the CMS-588 (01/17)
  • Ensure that your application is complete and that all supporting documentation is included
  • Ensure that the Legal Business Name entered in section 2 matches the name located on your IRS tax documentation
  • Respond quickly to any request for additional information or changes required to process your application
Last Modified: 8/4/17

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J6 Mailing Address:

National Government Services, Inc.

P.O. Box 6474 | Indianapolis, IN 46206-6474

JK Mailing Address:

National Government Services, Inc.

P.O. Box 7149 | Indianapolis, IN 46207-7149

Contact Enrollment:

J6: 855-834-5596

JK: 855-593-8047

Available by phone Monday-Friday*
JK: 8:00 a.m.-4:00 p.m. ET
J6: 8:00 a.m.-4:00 p.m. CT
J6: 9:00 a.m.-5:00 p.m. ET

*Closed for training on the 2nd and 4th Friday of the month
12:00 p.m.-4:00 p.m. ET
11:00 a.m.-3:00 p.m. CT

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