CMS has released a lot of data on inpatient and outpatient services, utilization and cost. Here are some links to the data and some links to tools to help you use and visualize it.
CMS data (Excel and CSV) on 100 most common inpatient services
CMS data (Excel and CSV) on 30 outpatient services
CMS Medicare spending by state
CMS county-level Medicare spending, quality, utilization
CMS county-level chronic conditions
A dashboard version of the county/state data for people less skilled with databases
Here are Washington Post tools that help you use the inpatient data:
Search by hospital
Search by state (at the bottom of the article)
Here’s a related Advisory Board mapping tool
And here’s some help with the data for people less skilled with databases