Medicare Ambulance Access Preservation Act of 2011 - Amends title XVIII (Medicare) of the Social Security Act to increase to 6% the rate of increase in the fee schedule for ground ambulance services furnished between January 1, 2012, and January 1, 2018, in rural and urban areas.
Extends to January 1, 2018, the increase in the base rate of the fee schedule the Secretary of Health and Human Services (HHS) is required to make for a trip in the case of ground ambulance services furnished on or after July 1, 2004, for which the transportation originates in a qualified low population density rural area.