On April 28, 2025, CMS awarded Cotiviti GOV Services LLC the Recovery Audit Contractor (RAC) contracts for Regions 3, 4, and 5. The legacy Region 4 portal will remain available until 8/31/2025. The website and portal for the new contracts is located at www.cotiviti.com/rac in a new window and Region 4 providers should visit that site and register for the portal. This portal will be for audit request letter dated June 2025 and later.

Contact Region 4
Phone 833-510-9689
Fax 203-529-2995
Email rac4info@cotiviti.com link opens the email application

Knowledge Based Authentication


Please note:
  • You are accessing a U.S. Government information system, which includes: (1) this computer, (2) this computer network, (3) all computers connected to this network, and (4) all devices and storage media attached to this network or to a computer on this network. This information system is provided for U.S. Government-authorized use only.
  • Unauthorized or improper use of this system may result in disciplinary action, as well as civil and criminal penalties.
  • By using this information system, you understand and consent to the following:
  • You have no reasonable expectation of privacy regarding any communication or data transiting or stored on this information system. At any time, and for any lawful Government purpose, the Government may monitor, intercept, and search and seize any communication or data transiting or stored on this information system.
  • Any communication or data transiting or stored on this information system may be disclosed or used for any lawful Government purpose.


Provider Type
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Provider Sign In

  • You are accessing a U.S. Government information system, which includes: (1) this computer, (2) this computer network, (3) all computers connected to this network, and (4) all devices and storage media attached to this network or to a computer on this network. This information system is provided for U.S. Government-authorized use only.
  • Unauthorized or improper use of this system may result in disciplinary action, as well as civil and criminal penalties.
  • By using this information system, you understand and consent to the following:
  • You have no reasonable expectation of privacy regarding any communication or data transiting or stored on this information system. At any time, and for any lawful Government purpose, the Government may monitor, intercept, and search and seize any communication or data transiting or stored on this information system.
  • Any communication or data transiting or stored on this information system may be disclosed or used for any lawful Government purpose.


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