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PCC Written Correspondence

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-Medicareor visit the Official U.S. Government Site for People with Medicare
NOTE: It may take up to 45 business days for CGS to respond to an online inquiry. If you need immediate assistance, please call Customer Service at 1.866.276.9558. Select Option 9 to speak with a representative during normal business hours.

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.

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