CAHPS surveys ask consumers and patients to report on and evaluate their health care experiences.   These surveys cover topics important to consumers and focus on aspects of quality that consumers are best qualified to assess.  CAHPS and guidance documents are free to anyone who wants to use them.  “CAHPS” is a registered trademark of the federal Agency for Healthcare Research and Quality (AHRQ).  

https://www.ahrq.gov/cahps/index.html