Access to Medicare Imaging Act of 2007 - Amends title XVIII (Medicare) of the Social Security Act with respect to limitations on payments for physicians' imaging services.
Renames the imaging services concerned advanced diagnostic imaging services.
Eliminates X-ray and ultrasound (including echocardiography) services from payment limitations for such services.
Confines existing payment limitations to diagnostic magnetic resonance imaging (MRI), computed tomography (CT), positron emission tomography (PET) (all specified under current law), plus nuclear cardiology procedures.
Imposes a two-year moratorium, however, on the application of existing payment limitations for such services.
Directs the Comptroller General to study and report to Congress and the Secretary of Health and Human Services on patient access and service issues relating to the availability and quality of advanced diagnostic imaging services in physician offices and freestanding clinics that would have resulted (but for the moratorium declared by this Act) from payment changes made under the Deficit Reduction Act of 2005.