Main Medicare website for providers (not patients):
Medicare Coverage Database
http://www.cms.gov/medicare-coverage-database/
Medicare Coverage Database - quick search
http://www.cms.gov/medicare-coverage-database/overview-and-quick-search.aspx
National Coverage Determination (NCD) for Routine Costs in Clinical Trials (310.1)
Medicare Chapter 32 - billing requirements for special services
http://www.cms.gov/Regulations-and-Guidance/Guidance/Manuals/downloads/clm104c32.pdf
Medicare Benefit Policy Manual - Ch 14, Devices
http://www.cms.gov/Regulations-and-Guidance/Guidance/Manuals/downloads/bp102c14.pdf
MLN Matters MM5790 - Clinical Trial Claims