Medicare Preventive Benefits Act of 1991

Medicare Preventive Benefits Act of 1991 - Amends part B (Supplementary Medical Insurance) of title XVIII (Medicare) of the Social Security Act to provide for coverage of fecal-occult blood tests (FOBTs) and screening flexible sigmoidoscopies for the early detection of colorectal cancer. Covers FOBTs on an annual basis for individuals aged 50 or over. Covers screening sigmoidoscopies provided every five years for individuals aged 50 or over.

Provides payment for FOBTs under the laboratory fee schedule, subject to a five dollar limit in 1992. Provides payment for screening sigmoidoscopies under the relative value scale in 1992. Permits the Secretary to modify the frequency criteria after 1994.

Provides for Medicare coverage of annual influenza vaccinations and for tetanus-diptheria vaccinations administered every ten years. Provides for Medicare coverage up to age seven according to a frequency schedule to be established by the Secretary of Health and Human Services (HHS) in consultation with appropriate entities.

Provides for Medicare coverage of annual screening mammography for the early detection of breast cancer for women over age 64. (Currently, such women are covered for such screening performed every other year.)

Requires HHS demonstration projects for the coverage of additional specified preventive care services and reports to specified congressional committees on such projects. Authorizes appropriations.

Authorizes an Office of Technology Assessment study and report to the Congress on the development of a process evaluating possible Medicare coverage of other preventive care services.