Crain’s Chicago Business writes Advocate Health Care – a Chicago health system – website will now contain patient star ratings on physician profiles, along with name, specialties and contact information. Advocate is joining a pool of hospital systems that list their Yelp-like reviews next to each qualifying physician’s name. Physicians need at least 30 responses and at least three comments for a star rating to appear on their profile. Advocate will use the Clinician & Group Consumer Assessment of Healthcare Providers & Systems, or CGCAHPS, patient satisfactory survey to measure patient perceptions of care delivered by a physician or nurse practitioner in an office setting. In this way, it can ensure that responses come from actual patients. The ratings, which only include patient reviews of office visits, are calculated based on how patients respond to a list of questions they receive in the mail one week after their visit. Approximately 20 hospitals and health systems nationwide have already rolled out similar programs using the CGCAHPS survey.