Comprehensive Outpatient Rehabilitation Facility (CORF)

On this page, view the below information.

Information is found in CMS Internet Only Manual (IOM), Publication 100-08, Medicare Program Integrity Manual, Chapter 15 Section 4.1.2 and the CMS IOM, Publication 100-07, State Operations Manual, Chapter 2. A CORF is a facility established and operated at a single fixed location exclusively for providing diagnostic, therapeutic, and restorative services to outpatients by or under the supervision of a physician

Examples of these services include:

  • Physician services*
  • Physical therapy*
  • Social work or psychological services*
  • Occupational therapy
  • Respiratory therapy
  • Speech pathology
  • Prosthetic/orthotic devices
  • Lab services (must meet 42 CFR Part 493 requirements)
    • Note: (*) indicates services required

Billing for CORF

  • For more information regarding billing, go to the billing portion of the website.

Application Requirements

Application Tips
PECOS application
  • "Institutional Provider" (e.g., Hospital, Skilled Nursing Facility, Hospice, Home Health Agency)
  • Complete questionnaire to ensure correct applications (CMS-855A and CMS 588-EFT) populate.
  • Complete all form sections
  • Attach all supporting documentation such as IRS documents
  • List all directors, board members, and contracted or W-2 managing employee
  • Visit the Application Fee webpage to access CMS link to pay application fee
  • Submit completed CMS-588 EFT and voided check/bank letter. EIN required to be on application in Tax Identification Number (TIN) field


Application Time Frame

  • Once Noridian has completed the reviewal of the application, a Recommendation for Approval Letter is sent to the State Agency and CMS. Below are the time frames in which Noridian has to review the application
Application Type Processing Time
PECOS On average, it can take 45 calendar days before application is sent to the state and CMS for approval
Paper On average, it can take 60 calendar days before application is sent to the state and CMS for approval


  • The state agency and the CMS regional office work together on the approval process. Once the regional office has all the required information, they will issue the approval letter. This is sent to the provider and to Noridian.
  • After receiving the tie-in, Noridian will have the following time-frames to complete the application.
    • If a site visit is needed, Noridian will have 45 days to complete the application
    • If a site visit is not needed, Noridian will have 21 days to complete the application


Last Updated Mon, 19 Oct 2020 18:42:36 +0000