OAS CAHPS Public Reporting Results Refreshed on Provider Data Catalog (Quarters 3-4, 2019 and Quarter 3-4, 2020)
folder_openPublic Reportingcalendar_todayPosted July 21, 2021

Outpatient and Ambulatory Surgery CAHPS (OAS CAHPS) Survey results based on responses from patients who received an outpatient surgery or procedure between July and December 2019, and July and December 2020* (Q3-4, 2019 and Q3-4, 2020) are now publicly available on the Provider Data Catalog (PDC) website (formerly known as The PDC website provides downloadable datasets (direct link: OAS CAHPS data are also referenced on Care Compare, which points to the downloadable datasets on the PDC website under "Resources & Information" (direct link:

You can access OAS CAHPS Survey results at the facility, state and national levels.

As a reminder, OAS CAHPS Survey results are updated each calendar year quarter, as shown in Table 14.2 of the OAS CAHPS Survey Protocols and Guidelines Manual, Version 5.0, available here. CMS has determined that OAS CAHPS public reporting will include four quarters of data. For any public reporting period with fewer than four quarters due to the suppression of Quarter 2 of 2020, earlier quarters will be reported to replace Quarter 2 of 2020.

For more information about how the data were analyzed and for the patient-mix adjustment factors that were used to statistically adjust the results that are currently being publicly reported, click on the "Patient Mix Adjustment Factors" in the Quick Links box on the Home page.

If you have any questions, please contact the OAS CAHPS Survey Coordination Team via e-mail at or call toll-free (866) 590-7468.

* Please note that Quarter 2, 2020 will not be publicly reported due to the impact of COVID-19. Therefore, to report four quarters of data, one older quarter (Q3, 2019) will be reported in place of Quarter 2, 2020.