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Part B Online Help Center

NOTE: Looking for Part B contact information?

IMPORTANT: This inquiry tool is designed for Medicare providers. Medicare Beneficiaries are encouraged to call 1-800-Medicare or visit the Official U.S. Government Site for People with Medicare

Important: In order to ensure your privacy, please do not transmit any of the following information to CGS. Revealing this information online could expose you or others as a target for Medicare fraud and abuse.

  1. Personal information, including Social Security numbers
  2. Beneficiary specific information, including Health Insurance Claim (HIC) Numbers, coinsurance and deductible information, dates of Medicare entitlement, copies of or information from Medicare claim forms, Medicare reports of eligibility, and Medicare Summary Notices (MSNs).
  3. Information covered under the Freedom of Information Act (1967) and/or the Privacy Act of 1974.
  4. Claim specific data.

Contact Information

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