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J15 Part B Contact Information

Phone / FAXPhone / FAX – Various department phone and fax numbers are available here along with the IVR User Guide, Medicare Beneficiary Identifier (MBI) and Name to Number Converter, and myCGS Web Portal resources.

Phone / FAX

Mailing AddressesMailing Addresses – Find a complete list of addresses for you to send general correspondence, appeals, medical review additional development requests, provider enrollment, refund checks and more.

Mailing Addresses

Self-Service OptionsSelf-Service Options – Access this complete list of valuable customer service, provider outreach & education website options that can assist you in your daily processes.

Self-Service Options

CalendarCalendar – Check this calendar to see the Federal Holiday and Provider Contact Center (PCC) training closure schedule.


FAQsFAQs – FAQs – Find answers to the most frequently asked question covering a variety of topics.


How Do I…?How Do I…? – Before you call, check for the answers to common questions received by the Provider Contact Center related to appeals, claims, Medicare benefits, myCGS and more.

How Do I…?

Education & EventsEducation & Events – A direct link to educational resources and materials that will assist with successfully billing Part B Medicare claims.

Education & Events

Claims Processing Issues Log (CPIL)Claims Processing Issues Log (CPIL) – Stay informed of system related issues that may affect the processing of your claims.

Claims Processing Issues Log (CPIL)

People with MedicarePeople with Medicare – Resources for Medicare Beneficiaries

People with Medicare

Updated: 01.02.24


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