Provider Certification Denials

Denial Reason, Reason/Remark Code(s)
  • CO-B7: This provider was not certified/eligible to be paid for this procedure/service on the date of service
  • Medicare contractors periodically turn off provider billing numbers after a period of inactivity. If your number has been deactivated for this reason:
    • Download the forms directly from the CMS website. Then complete, print, sign and mail to Palmetto GBA.
    • Complete and submit your application through PECOS website. Your application may be processed up to 50 percent faster than applications submitted on paper.
    • Not sure which form to complete? Access the Palmetto GBA Provider Enrollment Web page for helpful tips.

Contact Palmetto GBA JM Part B Medicare

Email Part B

Contact a specific JM Part B department

Provider Contact Center: 855-696-0705

TDD: 866-830-3188

Other Palmetto GBA Sites

Palmetto GBA Home

DMEPOS Competitive Bidding Program

Jurisdiction J Part A MAC

Jurisdiction J Part B MAC

Jurisdiction M Part A MAC

Jurisdiction M Part B MAC

Jurisdiction M Home Health and Hospice MAC


National Supplier Clearinghouse MAC


RRB Specialty MAC Providers

RRB Specialty MAC Beneficiaries



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