This interactive map analysis displays variations in price for four common medical services across and within major U.S. cities.
The services examined were: lipid panel, preventive primary care visit, head/brain CT scan, and lower back MRI.

Lipid panel
Preventive primary care visit
Head/brain CT scan
Lower back MRI

Source: Castlight Health. The primary source of data used for this analysis is medical claims data. Castlight augments this data with
other data including: publicly available data, provider information, and actual provider rate sheets that list the negotiated price between
a provider and an insurer. Castlight then applies proprietary algorithms to obtain the provider prices used for this analysis.
Prices are defined as the employee cost-sharing plus the amount paid by the consumer.

Note: Displayed prices are representative of in-network providers.