Star ratings are displayed for physicians who provide outpatient care and meet the minimum of 30 survey responses within a rolling 12-month period. Physicians and providers in certain inpatient-only specialties or those serving sensitive patient populations may not have star ratings. Additionally, if a provider does not meet the minimum number of 30 survey responses in a given 12-month period, their ratings will not appear until the threshold is reached, even if they previously met that threshold in past periods.