Medicare Spending Transparency Act of 2011

Medicare Spending Transparency Act of 2011 - Amends title XI of the Social Security Act (SSA) to direct the Secretary of Health and Human Services (HHS), consistent with applicable information, privacy, security, and disclosure laws, to make public on the Internet website of the Centers for Medicare and Medicaid Services the following data with respect to SSA title XVIII (Medicare): (1) a complete list of service providers and suppliers participating in the Medicare program, including their business addresses; and (2) certain aggregate information about each provider and supplier.

Entitles a qualified individual or group, for health research and fraud detection purposes, to access to Medicare claims and payment data of both HHS and its contractors. Directs the Secretary to establish procedures for the storage and use of data provided to such an individual or group.