Find 30-day death rates for patients with stroke, at Hospital Compare. Select the Complications and Deaths tab after you’ve selected your hospitals. Federal government site from CMS shows whether hospitals met expected 30-day survival rates for Medicare stroke patients. The national Risk-Adjusted death rate (mortality rate) was 13.6% for stroke in the latest reporting period 3 years ending June 2021. Updated 2022. Can also find percent of stroke patients in the emergency department who received a brain scan within 45 minutes of arrival. Listed under “Timely and Effective Care”.