To provide for payment by the United States for certain medical services and treatment provided to United States citizens and permanent residents suffering from physical injuries attributable to the atomic bomb explosions on Hiroshima and Nagasaki, Japan, in August 1945.

Requires the Secretary of Health and Human Services to pay for unreimbursed medical services and treatment for any physical illness suffered by a U.S. citizen or permanent resident directly attributable to the atomic explosions on Japan in August 1945.

Limits such assistance to medical services provided in the United States on or after the date of enactment.